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Finding the Fourth Proportional to 381,930.32, 527,045.96 and 212,174.80

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Solution

The fourth proportional to 381,930.32, 527,045.96 and 212,174.80 is: 292,791.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,930.32 : 527,045.96 = 212,174.80 : x
  2. Step 2: Convert to fraction form
    381,930.32/527,045.96 = 212,174.80/x
  3. Step 3: Cross multiply
    381,930.32x = 527,045.96 × 212,174.80
  4. Step 4: Simplify right side
    381,930.32x = 111,825,871,153.81
  5. Step 5: Solve for x
    x = 111,825,871,153.81/381,930.32
  6. Step 6: Final answer
    x = 292,791.29

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