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Finding the Fourth Proportional to 400,864.56, 553,239.74 and 231,104.76

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Solution

The fourth proportional to 400,864.56, 553,239.74 and 231,104.76 is: 318,951.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,864.56 : 553,239.74 = 231,104.76 : x
  2. Step 2: Convert to fraction form
    400,864.56/553,239.74 = 231,104.76/x
  3. Step 3: Cross multiply
    400,864.56x = 553,239.74 × 231,104.76
  4. Step 4: Simplify right side
    400,864.56x = 127,856,337,335.16
  5. Step 5: Solve for x
    x = 127,856,337,335.16/400,864.56
  6. Step 6: Final answer
    x = 318,951.46

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