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Finding the Fourth Proportional to 354,644.40, 531,966.60 and 221,674.80

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Solution

The fourth proportional to 354,644.40, 531,966.60 and 221,674.80 is: 332,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,644.40 : 531,966.60 = 221,674.80 : x
  2. Step 2: Convert to fraction form
    354,644.40/531,966.60 = 221,674.80/x
  3. Step 3: Cross multiply
    354,644.40x = 531,966.60 × 221,674.80
  4. Step 4: Simplify right side
    354,644.40x = 117,923,589,661.68
  5. Step 5: Solve for x
    x = 117,923,589,661.68/354,644.40
  6. Step 6: Final answer
    x = 332,512.20

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