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Finding the Fourth Proportional to 531,100.20, 796,650.30 and 489,109.80

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Solution

The fourth proportional to 531,100.20, 796,650.30 and 489,109.80 is: 733,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,100.20 : 796,650.30 = 489,109.80 : x
  2. Step 2: Convert to fraction form
    531,100.20/796,650.30 = 489,109.80/x
  3. Step 3: Cross multiply
    531,100.20x = 796,650.30 × 489,109.80
  4. Step 4: Simplify right side
    531,100.20x = 389,649,468,902.94
  5. Step 5: Solve for x
    x = 389,649,468,902.94/531,100.20
  6. Step 6: Final answer
    x = 733,664.70

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