Finding the Fourth Proportional to 642,528.05, 886,694.00 and 356,052.92
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Solution
The fourth proportional to 642,528.05, 886,694.00 and 356,052.92 is: 491,355.96
Step by Step Solution
- Step 1: Write the proportion equation
642,528.05 : 886,694.00 = 356,052.92 : x - Step 2: Convert to fraction form
642,528.05/886,694.00 = 356,052.92/x - Step 3: Cross multiply
642,528.05x = 886,694.00 × 356,052.92 - Step 4: Simplify right side
642,528.05x = 315,709,988,282.95 - Step 5: Solve for x
x = 315,709,988,282.95/642,528.05 - Step 6: Final answer
x = 491,355.96
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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.