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Finding the Fourth Proportional to 576,136.20, 864,204.30 and 521,023.80

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Solution

The fourth proportional to 576,136.20, 864,204.30 and 521,023.80 is: 781,535.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,136.20 : 864,204.30 = 521,023.80 : x
  2. Step 2: Convert to fraction form
    576,136.20/864,204.30 = 521,023.80/x
  3. Step 3: Cross multiply
    576,136.20x = 864,204.30 × 521,023.80
  4. Step 4: Simplify right side
    576,136.20x = 450,271,008,362.34
  5. Step 5: Solve for x
    x = 450,271,008,362.34/576,136.20
  6. Step 6: Final answer
    x = 781,535.70

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