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Finding the Fourth Proportional to 410,819.70, 616,229.55 and 347,834.10

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Solution

The fourth proportional to 410,819.70, 616,229.55 and 347,834.10 is: 521,751.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,819.70 : 616,229.55 = 347,834.10 : x
  2. Step 2: Convert to fraction form
    410,819.70/616,229.55 = 347,834.10/x
  3. Step 3: Cross multiply
    410,819.70x = 616,229.55 × 347,834.10
  4. Step 4: Simplify right side
    410,819.70x = 214,345,650,917.66
  5. Step 5: Solve for x
    x = 214,345,650,917.66/410,819.70
  6. Step 6: Final answer
    x = 521,751.15

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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.