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Finding the Fourth Proportional to 396,833.92, 547,400.64 and 260,892.16

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Solution

The fourth proportional to 396,833.92, 547,400.64 and 260,892.16 is: 359,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,833.92 : 547,400.64 = 260,892.16 : x
  2. Step 2: Convert to fraction form
    396,833.92/547,400.64 = 260,892.16/x
  3. Step 3: Cross multiply
    396,833.92x = 547,400.64 × 260,892.16
  4. Step 4: Simplify right side
    396,833.92x = 142,812,535,354.98
  5. Step 5: Solve for x
    x = 142,812,535,354.98/396,833.92
  6. Step 6: Final answer
    x = 359,879.86

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1.5x scale

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.