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Finding the Fourth Proportional to 624,694.62, 862,079.07 and 338,214.90

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Solution

The fourth proportional to 624,694.62, 862,079.07 and 338,214.90 is: 466,736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,694.62 : 862,079.07 = 338,214.90 : x
  2. Step 2: Convert to fraction form
    624,694.62/862,079.07 = 338,214.90/x
  3. Step 3: Cross multiply
    624,694.62x = 862,079.07 × 338,214.90
  4. Step 4: Simplify right side
    624,694.62x = 291,567,986,452.14
  5. Step 5: Solve for x
    x = 291,567,986,452.14/624,694.62
  6. Step 6: Final answer
    x = 466,736.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.