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Finding the Fourth Proportional to 397,517.20, 596,304.60 and 239,405.20

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Solution

The fourth proportional to 397,517.20, 596,304.60 and 239,405.20 is: 359,125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,517.20 : 596,304.60 = 239,405.20 : x
  2. Step 2: Convert to fraction form
    397,517.20/596,304.60 = 239,405.20/x
  3. Step 3: Cross multiply
    397,517.20x = 596,304.60 × 239,405.20
  4. Step 4: Simplify right side
    397,517.20x = 142,758,422,023.92
  5. Step 5: Solve for x
    x = 142,758,422,023.92/397,517.20
  6. Step 6: Final answer
    x = 359,125.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.