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Finding the Fourth Proportional to 574,489.38, 862,127.79 and 200,512.38

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Solution

The fourth proportional to 574,489.38, 862,127.79 and 200,512.38 is: 300,905.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,489.38 : 862,127.79 = 200,512.38 : x
  2. Step 2: Convert to fraction form
    574,489.38/862,127.79 = 200,512.38/x
  3. Step 3: Cross multiply
    574,489.38x = 862,127.79 × 200,512.38
  4. Step 4: Simplify right side
    574,489.38x = 172,867,295,037.04
  5. Step 5: Solve for x
    x = 172,867,295,037.04/574,489.38
  6. Step 6: Final answer
    x = 300,905.99

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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.