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Finding the Fourth Proportional to 396,953.20, 547,755.91 and 224,836.91

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Solution

The fourth proportional to 396,953.20, 547,755.91 and 224,836.91 is: 310,252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,953.20 : 547,755.91 = 224,836.91 : x
  2. Step 2: Convert to fraction form
    396,953.20/547,755.91 = 224,836.91/x
  3. Step 3: Cross multiply
    396,953.20x = 547,755.91 × 224,836.91
  4. Step 4: Simplify right side
    396,953.20x = 123,155,746,238.64
  5. Step 5: Solve for x
    x = 123,155,746,238.64/396,953.20
  6. Step 6: Final answer
    x = 310,252.56

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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.