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Finding the Fourth Proportional to 924,803.20, 1,387,204.80 and 259,868.80

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Solution

The fourth proportional to 924,803.20, 1,387,204.80 and 259,868.80 is: 389,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,803.20 : 1,387,204.80 = 259,868.80 : x
  2. Step 2: Convert to fraction form
    924,803.20/1,387,204.80 = 259,868.80/x
  3. Step 3: Cross multiply
    924,803.20x = 1,387,204.80 × 259,868.80
  4. Step 4: Simplify right side
    924,803.20x = 360,491,246,730.24
  5. Step 5: Solve for x
    x = 360,491,246,730.24/924,803.20
  6. Step 6: Final answer
    x = 389,803.20

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