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Finding the Fourth Proportional to 381,796.20, 572,694.30 and 360,023.40

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Solution

The fourth proportional to 381,796.20, 572,694.30 and 360,023.40 is: 540,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,796.20 : 572,694.30 = 360,023.40 : x
  2. Step 2: Convert to fraction form
    381,796.20/572,694.30 = 360,023.40/x
  3. Step 3: Cross multiply
    381,796.20x = 572,694.30 × 360,023.40
  4. Step 4: Simplify right side
    381,796.20x = 206,183,349,046.62
  5. Step 5: Solve for x
    x = 206,183,349,046.62/381,796.20
  6. Step 6: Final answer
    x = 540,035.10

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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.