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Finding the Fourth Proportional to 693,046.85, 957,340.73 and 522,255.80

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Solution

The fourth proportional to 693,046.85, 957,340.73 and 522,255.80 is: 721,418.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,046.85 : 957,340.73 = 522,255.80 : x
  2. Step 2: Convert to fraction form
    693,046.85/957,340.73 = 522,255.80/x
  3. Step 3: Cross multiply
    693,046.85x = 957,340.73 × 522,255.80
  4. Step 4: Simplify right side
    693,046.85x = 499,976,752,517.73
  5. Step 5: Solve for x
    x = 499,976,752,517.73/693,046.85
  6. Step 6: Final answer
    x = 721,418.41

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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.