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Finding the Fourth Proportional to 410,821.80, 616,232.70 and 394,492.20

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Solution

The fourth proportional to 410,821.80, 616,232.70 and 394,492.20 is: 591,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,821.80 : 616,232.70 = 394,492.20 : x
  2. Step 2: Convert to fraction form
    410,821.80/616,232.70 = 394,492.20/x
  3. Step 3: Cross multiply
    410,821.80x = 616,232.70 × 394,492.20
  4. Step 4: Simplify right side
    410,821.80x = 243,098,993,534.94
  5. Step 5: Solve for x
    x = 243,098,993,534.94/410,821.80
  6. Step 6: Final answer
    x = 591,738.30

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