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Finding the Fourth Proportional to 543,843.20, 815,764.80 and 543,843.20

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Solution

The fourth proportional to 543,843.20, 815,764.80 and 543,843.20 is: 815,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,843.20 : 815,764.80 = 543,843.20 : x
  2. Step 2: Convert to fraction form
    543,843.20/815,764.80 = 543,843.20/x
  3. Step 3: Cross multiply
    543,843.20x = 815,764.80 × 543,843.20
  4. Step 4: Simplify right side
    543,843.20x = 443,648,139,279.36
  5. Step 5: Solve for x
    x = 443,648,139,279.36/543,843.20
  6. Step 6: Final answer
    x = 815,764.80

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