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Finding the Fourth Proportional to 402,474.80, 603,712.20 and 192,522.80

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Solution

The fourth proportional to 402,474.80, 603,712.20 and 192,522.80 is: 288,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,474.80 : 603,712.20 = 192,522.80 : x
  2. Step 2: Convert to fraction form
    402,474.80/603,712.20 = 192,522.80/x
  3. Step 3: Cross multiply
    402,474.80x = 603,712.20 × 192,522.80
  4. Step 4: Simplify right side
    402,474.80x = 116,228,363,138.16
  5. Step 5: Solve for x
    x = 116,228,363,138.16/402,474.80
  6. Step 6: Final answer
    x = 288,784.20

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