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Finding the Fourth Proportional to 457,103.60, 686,044.20 and 204,772.40

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Solution

The fourth proportional to 457,103.60, 686,044.20 and 204,772.40 is: 307,332.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,103.60 : 686,044.20 = 204,772.40 : x
  2. Step 2: Convert to fraction form
    457,103.60/686,044.20 = 204,772.40/x
  3. Step 3: Cross multiply
    457,103.60x = 686,044.20 × 204,772.40
  4. Step 4: Simplify right side
    457,103.60x = 140,482,917,340.08
  5. Step 5: Solve for x
    x = 140,482,917,340.08/457,103.60
  6. Step 6: Final answer
    x = 307,332.77

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