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Finding the Fourth Proportional to 519,766.20, 779,700.33 and 216,097.61

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Solution

The fourth proportional to 519,766.20, 779,700.33 and 216,097.61 is: 324,167.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,766.20 : 779,700.33 = 216,097.61 : x
  2. Step 2: Convert to fraction form
    519,766.20/779,700.33 = 216,097.61/x
  3. Step 3: Cross multiply
    519,766.20x = 779,700.33 × 216,097.61
  4. Step 4: Simplify right side
    519,766.20x = 168,491,373,930.71
  5. Step 5: Solve for x
    x = 168,491,373,930.71/519,766.20
  6. Step 6: Final answer
    x = 324,167.62

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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.