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Finding the Fourth Proportional to 449,610.80, 674,308.20 and 259,660.40

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Solution

The fourth proportional to 449,610.80, 674,308.20 and 259,660.40 is: 389,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,610.80 : 674,308.20 = 259,660.40 : x
  2. Step 2: Convert to fraction form
    449,610.80/674,308.20 = 259,660.40/x
  3. Step 3: Cross multiply
    449,610.80x = 674,308.20 × 259,660.40
  4. Step 4: Simplify right side
    449,610.80x = 175,091,136,935.28
  5. Step 5: Solve for x
    x = 175,091,136,935.28/449,610.80
  6. Step 6: Final answer
    x = 389,428.23

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