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Finding the Fourth Proportional to 400,549.96, 552,721.14 and 239,372.92

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Solution

The fourth proportional to 400,549.96, 552,721.14 and 239,372.92 is: 330,312.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,549.96 : 552,721.14 = 239,372.92 : x
  2. Step 2: Convert to fraction form
    400,549.96/552,721.14 = 239,372.92/x
  3. Step 3: Cross multiply
    400,549.96x = 552,721.14 × 239,372.92
  4. Step 4: Simplify right side
    400,549.96x = 132,306,473,227.53
  5. Step 5: Solve for x
    x = 132,306,473,227.53/400,549.96
  6. Step 6: Final answer
    x = 330,312.04

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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.