Finding the Fourth Proportional to 806,119.68, 1,111,535.84 and 621,938.72
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Solution
The fourth proportional to 806,119.68, 1,111,535.84 and 621,938.72 is: 857,573.87
Step by Step Solution
- Step 1: Write the proportion equation
806,119.68 : 1,111,535.84 = 621,938.72 : x - Step 2: Convert to fraction form
806,119.68/1,111,535.84 = 621,938.72/x - Step 3: Cross multiply
806,119.68x = 1,111,535.84 × 621,938.72 - Step 4: Simplify right side
806,119.68x = 691,307,177,563.73 - Step 5: Solve for x
x = 691,307,177,563.73/806,119.68 - Step 6: Final answer
x = 857,573.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.