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Finding the Fourth Proportional to 354,708.40, 532,062.60 and 221,738.80

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Solution

The fourth proportional to 354,708.40, 532,062.60 and 221,738.80 is: 332,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,708.40 : 532,062.60 = 221,738.80 : x
  2. Step 2: Convert to fraction form
    354,708.40/532,062.60 = 221,738.80/x
  3. Step 3: Cross multiply
    354,708.40x = 532,062.60 × 221,738.80
  4. Step 4: Simplify right side
    354,708.40x = 117,978,922,448.88
  5. Step 5: Solve for x
    x = 117,978,922,448.88/354,708.40
  6. Step 6: Final answer
    x = 332,608.20

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