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Finding the Fourth Proportional to 373,469.31, 515,431.22 and 212,348.50

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Solution

The fourth proportional to 373,469.31, 515,431.22 and 212,348.50 is: 293,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,469.31 : 515,431.22 = 212,348.50 : x
  2. Step 2: Convert to fraction form
    373,469.31/515,431.22 = 212,348.50/x
  3. Step 3: Cross multiply
    373,469.31x = 515,431.22 × 212,348.50
  4. Step 4: Simplify right side
    373,469.31x = 109,451,046,420.17
  5. Step 5: Solve for x
    x = 109,451,046,420.17/373,469.31
  6. Step 6: Final answer
    x = 293,065.70

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