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Finding the Third Proportional to 338.25 and 466.13

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Solution

The third proportional to 338.25 and 466.13 is: 642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.25 : 466.13 = 466.13 : x
  2. Step 2: Convert to fraction form
    338.25/466.13 = 466.13/x
  3. Step 3: Cross multiply
    338.25x = 466.13 × 466.13
  4. Step 4: Simplify right side
    338.25x = 217,272.52
  5. Step 5: Solve for x
    x = 217,272.52/338.25
  6. Step 6: Final answer
    x = 642.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.