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Finding the Fourth Proportional to 482,691.40, 724,037.10 and 132,483.40

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Solution

The fourth proportional to 482,691.40, 724,037.10 and 132,483.40 is: 198,725.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,691.40 : 724,037.10 = 132,483.40 : x
  2. Step 2: Convert to fraction form
    482,691.40/724,037.10 = 132,483.40/x
  3. Step 3: Cross multiply
    482,691.40x = 724,037.10 × 132,483.40
  4. Step 4: Simplify right side
    482,691.40x = 95,922,896,734.14
  5. Step 5: Solve for x
    x = 95,922,896,734.14/482,691.40
  6. Step 6: Final answer
    x = 198,725.10

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Double scale
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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.