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Finding the Fourth Proportional to 457,382.48, 686,011.44 and 120,394.91

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Solution

The fourth proportional to 457,382.48, 686,011.44 and 120,394.91 is: 180,575.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,382.48 : 686,011.44 = 120,394.91 : x
  2. Step 2: Convert to fraction form
    457,382.48/686,011.44 = 120,394.91/x
  3. Step 3: Cross multiply
    457,382.48x = 686,011.44 × 120,394.91
  4. Step 4: Simplify right side
    457,382.48x = 82,592,285,577.77
  5. Step 5: Solve for x
    x = 82,592,285,577.77/457,382.48
  6. Step 6: Final answer
    x = 180,575.97

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