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Finding the Fourth Proportional to 625,057.36, 862,581.36 and 338,576.56

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Solution

The fourth proportional to 625,057.36, 862,581.36 and 338,576.56 is: 467,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,057.36 : 862,581.36 = 338,576.56 : x
  2. Step 2: Convert to fraction form
    625,057.36/862,581.36 = 338,576.56/x
  3. Step 3: Cross multiply
    625,057.36x = 862,581.36 × 338,576.56
  4. Step 4: Simplify right side
    625,057.36x = 292,049,829,588.92
  5. Step 5: Solve for x
    x = 292,049,829,588.92/625,057.36
  6. Step 6: Final answer
    x = 467,236.85

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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.