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Finding the Fourth Proportional to 402,883.60, 603,634.20 and 192,067.60

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Solution

The fourth proportional to 402,883.60, 603,634.20 and 192,067.60 is: 287,771.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,883.60 : 603,634.20 = 192,067.60 : x
  2. Step 2: Convert to fraction form
    402,883.60/603,634.20 = 192,067.60/x
  3. Step 3: Cross multiply
    402,883.60x = 603,634.20 × 192,067.60
  4. Step 4: Simplify right side
    402,883.60x = 115,938,572,071.92
  5. Step 5: Solve for x
    x = 115,938,572,071.92/402,883.60
  6. Step 6: Final answer
    x = 287,771.88

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