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Finding the Fourth Proportional to 375,410.46, 517,651.31 and 239,228.70

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Solution

The fourth proportional to 375,410.46, 517,651.31 and 239,228.70 is: 329,871.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,410.46 : 517,651.31 = 239,228.70 : x
  2. Step 2: Convert to fraction form
    375,410.46/517,651.31 = 239,228.70/x
  3. Step 3: Cross multiply
    375,410.46x = 517,651.31 × 239,228.70
  4. Step 4: Simplify right side
    375,410.46x = 123,837,049,944.60
  5. Step 5: Solve for x
    x = 123,837,049,944.60/375,410.46
  6. Step 6: Final answer
    x = 329,871.07

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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.