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Finding the Third Proportional to 365.75 and 410.75

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Solution

The third proportional to 365.75 and 410.75 is: 461.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.75 : 410.75 = 410.75 : x
  2. Step 2: Convert to fraction form
    365.75/410.75 = 410.75/x
  3. Step 3: Cross multiply
    365.75x = 410.75 × 410.75
  4. Step 4: Simplify right side
    365.75x = 168,715.56
  5. Step 5: Solve for x
    x = 168,715.56/365.75
  6. Step 6: Final answer
    x = 461.29

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.