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Finding the Fourth Proportional to 624,008.61, 936,134.28 and 239,729.47

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Solution

The fourth proportional to 624,008.61, 936,134.28 and 239,729.47 is: 359,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,008.61 : 936,134.28 = 239,729.47 : x
  2. Step 2: Convert to fraction form
    624,008.61/936,134.28 = 239,729.47/x
  3. Step 3: Cross multiply
    624,008.61x = 936,134.28 × 239,729.47
  4. Step 4: Simplify right side
    624,008.61x = 224,418,972,452.90
  5. Step 5: Solve for x
    x = 224,418,972,452.90/624,008.61
  6. Step 6: Final answer
    x = 359,640.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.