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Finding the Fourth Proportional to 664,048.20, 996,072.30 and 220,816.20

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Solution

The fourth proportional to 664,048.20, 996,072.30 and 220,816.20 is: 331,224.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,048.20 : 996,072.30 = 220,816.20 : x
  2. Step 2: Convert to fraction form
    664,048.20/996,072.30 = 220,816.20/x
  3. Step 3: Cross multiply
    664,048.20x = 996,072.30 × 220,816.20
  4. Step 4: Simplify right side
    664,048.20x = 219,948,900,211.26
  5. Step 5: Solve for x
    x = 219,948,900,211.26/664,048.20
  6. Step 6: Final answer
    x = 331,224.30

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