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Finding the Fourth Proportional to 411.44, 617.38 and 167.94

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Solution

The fourth proportional to 411.44, 617.38 and 167.94 is: 252.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.44 : 617.38 = 167.94 : x
  2. Step 2: Convert to fraction form
    411.44/617.38 = 167.94/x
  3. Step 3: Cross multiply
    411.44x = 617.38 × 167.94
  4. Step 4: Simplify right side
    411.44x = 103,684.59
  5. Step 5: Solve for x
    x = 103,684.59/411.44
  6. Step 6: Final answer
    x = 252.01

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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.