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Finding the Fourth Proportional to 489,654.40, 734,308.80 and 174,121.60

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Solution

The fourth proportional to 489,654.40, 734,308.80 and 174,121.60 is: 261,120.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,654.40 : 734,308.80 = 174,121.60 : x
  2. Step 2: Convert to fraction form
    489,654.40/734,308.80 = 174,121.60/x
  3. Step 3: Cross multiply
    489,654.40x = 734,308.80 × 174,121.60
  4. Step 4: Simplify right side
    489,654.40x = 127,859,023,150.08
  5. Step 5: Solve for x
    x = 127,859,023,150.08/489,654.40
  6. Step 6: Final answer
    x = 261,120.95

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