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Finding the Third Proportional to 416.25 and 659.25

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Solution

The third proportional to 416.25 and 659.25 is: 1,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.25 : 659.25 = 659.25 : x
  2. Step 2: Convert to fraction form
    416.25/659.25 = 659.25/x
  3. Step 3: Cross multiply
    416.25x = 659.25 × 659.25
  4. Step 4: Simplify right side
    416.25x = 434,610.56
  5. Step 5: Solve for x
    x = 434,610.56/416.25
  6. Step 6: Final answer
    x = 1,044.11

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.