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Finding the Fourth Proportional to 414.24, 622.20 and 333.60

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Solution

The fourth proportional to 414.24, 622.20 and 333.60 is: 501.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.24 : 622.20 = 333.60 : x
  2. Step 2: Convert to fraction form
    414.24/622.20 = 333.60/x
  3. Step 3: Cross multiply
    414.24x = 622.20 × 333.60
  4. Step 4: Simplify right side
    414.24x = 207,565.92
  5. Step 5: Solve for x
    x = 207,565.92/414.24
  6. Step 6: Final answer
    x = 501.08

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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.