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Finding the Fourth Proportional to 519,282.80, 778,924.20 and 316,329.20

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Solution

The fourth proportional to 519,282.80, 778,924.20 and 316,329.20 is: 474,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,282.80 : 778,924.20 = 316,329.20 : x
  2. Step 2: Convert to fraction form
    519,282.80/778,924.20 = 316,329.20/x
  3. Step 3: Cross multiply
    519,282.80x = 778,924.20 × 316,329.20
  4. Step 4: Simplify right side
    519,282.80x = 246,396,469,046.64
  5. Step 5: Solve for x
    x = 246,396,469,046.64/519,282.80
  6. Step 6: Final answer
    x = 474,493.80

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