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Finding the Third Proportional to 416.25 and 462.75

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Solution

The third proportional to 416.25 and 462.75 is: 514.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.25 : 462.75 = 462.75 : x
  2. Step 2: Convert to fraction form
    416.25/462.75 = 462.75/x
  3. Step 3: Cross multiply
    416.25x = 462.75 × 462.75
  4. Step 4: Simplify right side
    416.25x = 214,137.56
  5. Step 5: Solve for x
    x = 214,137.56/416.25
  6. Step 6: Final answer
    x = 514.44

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.