RULES. I. Distinguish the given rates or prices into antecedents and consequents; place the antecedents in one column, and the consequents in another on the right, fronting one another by way of equation.
II. The first antecedent, and the last consequent to which an antecedent is required, must always be of the same kind.
III. The second antecedent must be of the same kind with the first consequent, and the third antecedent of the same kind with the second consequent, &c.
IV. If to any of the numbers a fraction be annexed, both the antecedent and its consequent must be multiplied into the denominator.
V. To facilitate the operation, terms that hap-
pen to be equal or the same in both columns, may be dropped or rejected, and other terms may be abridged.
VI. Multiply the antecedents continually for a divisor, and the consequents continually for a dividend, and the quot will be the answer or antecedent required.