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Finding the Fourth Proportional to 264.96, 396.90 and 226.44

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Solution

The fourth proportional to 264.96, 396.90 and 226.44 is: 339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.96 : 396.90 = 226.44 : x
  2. Step 2: Convert to fraction form
    264.96/396.90 = 226.44/x
  3. Step 3: Cross multiply
    264.96x = 396.90 × 226.44
  4. Step 4: Simplify right side
    264.96x = 89,874.04
  5. Step 5: Solve for x
    x = 89,874.04/264.96
  6. Step 6: Final answer
    x = 339.20

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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.