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Finding the Fourth Proportional to 317,447.60, 476,171.40 and 247,379.36

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Solution

The fourth proportional to 317,447.60, 476,171.40 and 247,379.36 is: 371,069.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,447.60 : 476,171.40 = 247,379.36 : x
  2. Step 2: Convert to fraction form
    317,447.60/476,171.40 = 247,379.36/x
  3. Step 3: Cross multiply
    317,447.60x = 476,171.40 × 247,379.36
  4. Step 4: Simplify right side
    317,447.60x = 117,794,976,182.30
  5. Step 5: Solve for x
    x = 117,794,976,182.30/317,447.60
  6. Step 6: Final answer
    x = 371,069.04

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