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Finding the Fourth Proportional to 396,735.78, 547,223.67 and 253,432.20

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Solution

The fourth proportional to 396,735.78, 547,223.67 and 253,432.20 is: 349,562.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,735.78 : 547,223.67 = 253,432.20 : x
  2. Step 2: Convert to fraction form
    396,735.78/547,223.67 = 253,432.20/x
  3. Step 3: Cross multiply
    396,735.78x = 547,223.67 × 253,432.20
  4. Step 4: Simplify right side
    396,735.78x = 138,684,098,580.17
  5. Step 5: Solve for x
    x = 138,684,098,580.17/396,735.78
  6. Step 6: Final answer
    x = 349,562.87

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