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Finding the Fourth Proportional to 543,868.80, 815,803.20 and 463,387.20

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Solution

The fourth proportional to 543,868.80, 815,803.20 and 463,387.20 is: 695,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,868.80 : 815,803.20 = 463,387.20 : x
  2. Step 2: Convert to fraction form
    543,868.80/815,803.20 = 463,387.20/x
  3. Step 3: Cross multiply
    543,868.80x = 815,803.20 × 463,387.20
  4. Step 4: Simplify right side
    543,868.80x = 378,032,760,599.04
  5. Step 5: Solve for x
    x = 378,032,760,599.04/543,868.80
  6. Step 6: Final answer
    x = 695,080.80

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