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Finding the Fourth Proportional to 488,474.60, 732,711.90 and 404,493.80

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Solution

The fourth proportional to 488,474.60, 732,711.90 and 404,493.80 is: 606,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,474.60 : 732,711.90 = 404,493.80 : x
  2. Step 2: Convert to fraction form
    488,474.60/732,711.90 = 404,493.80/x
  3. Step 3: Cross multiply
    488,474.60x = 732,711.90 × 404,493.80
  4. Step 4: Simplify right side
    488,474.60x = 296,377,420,736.22
  5. Step 5: Solve for x
    x = 296,377,420,736.22/488,474.60
  6. Step 6: Final answer
    x = 606,740.70

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Similar ratio
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1.5x scale

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.