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Finding the Fourth Proportional to 422,216.88, 633,257.28 and 185,515.44

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Solution

The fourth proportional to 422,216.88, 633,257.28 and 185,515.44 is: 278,243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,216.88 : 633,257.28 = 185,515.44 : x
  2. Step 2: Convert to fraction form
    422,216.88/633,257.28 = 185,515.44/x
  3. Step 3: Cross multiply
    422,216.88x = 633,257.28 × 185,515.44
  4. Step 4: Simplify right side
    422,216.88x = 117,479,002,932.40
  5. Step 5: Solve for x
    x = 117,479,002,932.40/422,216.88
  6. Step 6: Final answer
    x = 278,243.26

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