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Finding the Fourth Proportional to 519,826.80, 779,740.20 and 488,722.80

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Solution

The fourth proportional to 519,826.80, 779,740.20 and 488,722.80 is: 733,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,826.80 : 779,740.20 = 488,722.80 : x
  2. Step 2: Convert to fraction form
    519,826.80/779,740.20 = 488,722.80/x
  3. Step 3: Cross multiply
    519,826.80x = 779,740.20 × 488,722.80
  4. Step 4: Simplify right side
    519,826.80x = 381,076,813,816.56
  5. Step 5: Solve for x
    x = 381,076,813,816.56/519,826.80
  6. Step 6: Final answer
    x = 733,084.20

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