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Finding the Fourth Proportional to 425,304.60, 586,920.92 and 231,711.36

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Solution

The fourth proportional to 425,304.60, 586,920.92 and 231,711.36 is: 319,761.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,304.60 : 586,920.92 = 231,711.36 : x
  2. Step 2: Convert to fraction form
    425,304.60/586,920.92 = 231,711.36/x
  3. Step 3: Cross multiply
    425,304.60x = 586,920.92 × 231,711.36
  4. Step 4: Simplify right side
    425,304.60x = 135,996,244,585.65
  5. Step 5: Solve for x
    x = 135,996,244,585.65/425,304.60
  6. Step 6: Final answer
    x = 319,761.99

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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.