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Finding the Fourth Proportional to 482,959.80, 724,439.70 and 474,665.40

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Solution

The fourth proportional to 482,959.80, 724,439.70 and 474,665.40 is: 711,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,959.80 : 724,439.70 = 474,665.40 : x
  2. Step 2: Convert to fraction form
    482,959.80/724,439.70 = 474,665.40/x
  3. Step 3: Cross multiply
    482,959.80x = 724,439.70 × 474,665.40
  4. Step 4: Simplify right side
    482,959.80x = 343,866,459,976.38
  5. Step 5: Solve for x
    x = 343,866,459,976.38/482,959.80
  6. Step 6: Final answer
    x = 711,998.10

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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.