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Finding the Fourth Proportional to 657,892.28, 907,608.24 and 386,043.32

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Solution

The fourth proportional to 657,892.28, 907,608.24 and 386,043.32 is: 532,573.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,892.28 : 907,608.24 = 386,043.32 : x
  2. Step 2: Convert to fraction form
    657,892.28/907,608.24 = 386,043.32/x
  3. Step 3: Cross multiply
    657,892.28x = 907,608.24 × 386,043.32
  4. Step 4: Simplify right side
    657,892.28x = 350,376,098,228.96
  5. Step 5: Solve for x
    x = 350,376,098,228.96/657,892.28
  6. Step 6: Final answer
    x = 532,573.66

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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.