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Finding the Fourth Proportional to 412,843.80, 619,352.10 and 132,389.40

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Solution

The fourth proportional to 412,843.80, 619,352.10 and 132,389.40 is: 198,611.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,843.80 : 619,352.10 = 132,389.40 : x
  2. Step 2: Convert to fraction form
    412,843.80/619,352.10 = 132,389.40/x
  3. Step 3: Cross multiply
    412,843.80x = 619,352.10 × 132,389.40
  4. Step 4: Simplify right side
    412,843.80x = 81,995,652,907.74
  5. Step 5: Solve for x
    x = 81,995,652,907.74/412,843.80
  6. Step 6: Final answer
    x = 198,611.81

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