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Finding the Fourth Proportional to 482,912.10, 724,465.35 and 404,568.90

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Solution

The fourth proportional to 482,912.10, 724,465.35 and 404,568.90 is: 606,934.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,912.10 : 724,465.35 = 404,568.90 : x
  2. Step 2: Convert to fraction form
    482,912.10/724,465.35 = 404,568.90/x
  3. Step 3: Cross multiply
    482,912.10x = 724,465.35 × 404,568.90
  4. Step 4: Simplify right side
    482,912.10x = 293,096,149,737.62
  5. Step 5: Solve for x
    x = 293,096,149,737.62/482,912.10
  6. Step 6: Final answer
    x = 606,934.78

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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.