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Finding the Fourth Proportional to 432,010.40, 648,793.20 and 313,815.20

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Solution

The fourth proportional to 432,010.40, 648,793.20 and 313,815.20 is: 471,287.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,010.40 : 648,793.20 = 313,815.20 : x
  2. Step 2: Convert to fraction form
    432,010.40/648,793.20 = 313,815.20/x
  3. Step 3: Cross multiply
    432,010.40x = 648,793.20 × 313,815.20
  4. Step 4: Simplify right side
    432,010.40x = 203,601,167,816.64
  5. Step 5: Solve for x
    x = 203,601,167,816.64/432,010.40
  6. Step 6: Final answer
    x = 471,287.65

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