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Finding the Fourth Proportional to 619,242.20, 928,863.30 and 449,968.40

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Solution

The fourth proportional to 619,242.20, 928,863.30 and 449,968.40 is: 674,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,242.20 : 928,863.30 = 449,968.40 : x
  2. Step 2: Convert to fraction form
    619,242.20/928,863.30 = 449,968.40/x
  3. Step 3: Cross multiply
    619,242.20x = 928,863.30 × 449,968.40
  4. Step 4: Simplify right side
    619,242.20x = 417,959,132,919.72
  5. Step 5: Solve for x
    x = 417,959,132,919.72/619,242.20
  6. Step 6: Final answer
    x = 674,952.60

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