Initial quantity and units X First ratio and units x Second ratio and units X Third ratio and units = Final quantity and units Example: Convert fluid ounces per 70 floz/kg X 29.5735 kilogram to milliliters per pound mL/floz X 0.4536 kg/lb X = 939.0031 mL/lb A) Convert miligrams per milliliter 77 mg/ml X X to micrograms per teaspoon mc/floz B) Convert liters per hour to 26 L/h X X gallons per day X kg/d C) Convert pounds per square inch to kilograms per square 20 Ib/in^2 X X centimeter (hint: one conversion X factor is applied twice) D) Convert miles per year to feet 25 mi/yr X X