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Finding the Fourth Proportional to 431,044.60, 646,566.90 and 131,524.60

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Solution

The fourth proportional to 431,044.60, 646,566.90 and 131,524.60 is: 197,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,044.60 : 646,566.90 = 131,524.60 : x
  2. Step 2: Convert to fraction form
    431,044.60/646,566.90 = 131,524.60/x
  3. Step 3: Cross multiply
    431,044.60x = 646,566.90 × 131,524.60
  4. Step 4: Simplify right side
    431,044.60x = 85,039,452,895.74
  5. Step 5: Solve for x
    x = 85,039,452,895.74/431,044.60
  6. Step 6: Final answer
    x = 197,286.90

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