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Finding the Fourth Proportional to 605,240.70, 907,861.05 and 392,664.30

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Solution

The fourth proportional to 605,240.70, 907,861.05 and 392,664.30 is: 588,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,240.70 : 907,861.05 = 392,664.30 : x
  2. Step 2: Convert to fraction form
    605,240.70/907,861.05 = 392,664.30/x
  3. Step 3: Cross multiply
    605,240.70x = 907,861.05 × 392,664.30
  4. Step 4: Simplify right side
    605,240.70x = 356,484,623,695.52
  5. Step 5: Solve for x
    x = 356,484,623,695.52/605,240.70
  6. Step 6: Final answer
    x = 588,996.45

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