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Finding the Fourth Proportional to 259,627.60, 389,441.40 and 223,992.40

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Solution

The fourth proportional to 259,627.60, 389,441.40 and 223,992.40 is: 335,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,627.60 : 389,441.40 = 223,992.40 : x
  2. Step 2: Convert to fraction form
    259,627.60/389,441.40 = 223,992.40/x
  3. Step 3: Cross multiply
    259,627.60x = 389,441.40 × 223,992.40
  4. Step 4: Simplify right side
    259,627.60x = 87,231,913,845.36
  5. Step 5: Solve for x
    x = 87,231,913,845.36/259,627.60
  6. Step 6: Final answer
    x = 335,988.60

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