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Finding the Fourth Proportional to 498,136.60, 747,204.90 and 165,712.60

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Solution

The fourth proportional to 498,136.60, 747,204.90 and 165,712.60 is: 248,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,136.60 : 747,204.90 = 165,712.60 : x
  2. Step 2: Convert to fraction form
    498,136.60/747,204.90 = 165,712.60/x
  3. Step 3: Cross multiply
    498,136.60x = 747,204.90 × 165,712.60
  4. Step 4: Simplify right side
    498,136.60x = 123,821,266,711.74
  5. Step 5: Solve for x
    x = 123,821,266,711.74/498,136.60
  6. Step 6: Final answer
    x = 248,568.90

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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.