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Finding the Fourth Proportional to 482,680.40, 724,020.60 and 132,472.40

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Solution

The fourth proportional to 482,680.40, 724,020.60 and 132,472.40 is: 198,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,680.40 : 724,020.60 = 132,472.40 : x
  2. Step 2: Convert to fraction form
    482,680.40/724,020.60 = 132,472.40/x
  3. Step 3: Cross multiply
    482,680.40x = 724,020.60 × 132,472.40
  4. Step 4: Simplify right side
    482,680.40x = 95,912,746,531.44
  5. Step 5: Solve for x
    x = 95,912,746,531.44/482,680.40
  6. Step 6: Final answer
    x = 198,708.60

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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.