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Finding the Fourth Proportional to 400,865.88, 553,057.56 and 228,660.06

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Solution

The fourth proportional to 400,865.88, 553,057.56 and 228,660.06 is: 315,472.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,865.88 : 553,057.56 = 228,660.06 : x
  2. Step 2: Convert to fraction form
    400,865.88/553,057.56 = 228,660.06/x
  3. Step 3: Cross multiply
    400,865.88x = 553,057.56 × 228,660.06
  4. Step 4: Simplify right side
    400,865.88x = 126,462,174,853.05
  5. Step 5: Solve for x
    x = 126,462,174,853.05/400,865.88
  6. Step 6: Final answer
    x = 315,472.53

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