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Finding the Fourth Proportional to 417,680.40, 626,520.60 and 122,192.40

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Solution

The fourth proportional to 417,680.40, 626,520.60 and 122,192.40 is: 183,288.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,680.40 : 626,520.60 = 122,192.40 : x
  2. Step 2: Convert to fraction form
    417,680.40/626,520.60 = 122,192.40/x
  3. Step 3: Cross multiply
    417,680.40x = 626,520.60 × 122,192.40
  4. Step 4: Simplify right side
    417,680.40x = 76,556,055,763.44
  5. Step 5: Solve for x
    x = 76,556,055,763.44/417,680.40
  6. Step 6: Final answer
    x = 183,288.60

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