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Finding the Fourth Proportional to 494,620.20, 741,930.30 and 317,473.20

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Solution

The fourth proportional to 494,620.20, 741,930.30 and 317,473.20 is: 476,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,620.20 : 741,930.30 = 317,473.20 : x
  2. Step 2: Convert to fraction form
    494,620.20/741,930.30 = 317,473.20/x
  3. Step 3: Cross multiply
    494,620.20x = 741,930.30 × 317,473.20
  4. Step 4: Simplify right side
    494,620.20x = 235,542,986,517.96
  5. Step 5: Solve for x
    x = 235,542,986,517.96/494,620.20
  6. Step 6: Final answer
    x = 476,209.80

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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.