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Finding the Fourth Proportional to 451,711.92, 676,384.20 and 317,867.52

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Solution

The fourth proportional to 451,711.92, 676,384.20 and 317,867.52 is: 475,968.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,711.92 : 676,384.20 = 317,867.52 : x
  2. Step 2: Convert to fraction form
    451,711.92/676,384.20 = 317,867.52/x
  3. Step 3: Cross multiply
    451,711.92x = 676,384.20 × 317,867.52
  4. Step 4: Simplify right side
    451,711.92x = 215,000,568,221.18
  5. Step 5: Solve for x
    x = 215,000,568,221.18/451,711.92
  6. Step 6: Final answer
    x = 475,968.33

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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.