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Finding the Fourth Proportional to 524,859.38, 724,654.55 and 403,787.06

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Solution

The fourth proportional to 524,859.38, 724,654.55 and 403,787.06 is: 557,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,859.38 : 724,654.55 = 403,787.06 : x
  2. Step 2: Convert to fraction form
    524,859.38/724,654.55 = 403,787.06/x
  3. Step 3: Cross multiply
    524,859.38x = 724,654.55 × 403,787.06
  4. Step 4: Simplify right side
    524,859.38x = 292,606,130,260.12
  5. Step 5: Solve for x
    x = 292,606,130,260.12/524,859.38
  6. Step 6: Final answer
    x = 557,494.33

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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.