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Finding the Third Proportional to 494.25 and 725.63

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Solution

The third proportional to 494.25 and 725.63 is: 1,065.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.25 : 725.63 = 725.63 : x
  2. Step 2: Convert to fraction form
    494.25/725.63 = 725.63/x
  3. Step 3: Cross multiply
    494.25x = 725.63 × 725.63
  4. Step 4: Simplify right side
    494.25x = 526,531.64
  5. Step 5: Solve for x
    x = 526,531.64/494.25
  6. Step 6: Final answer
    x = 1,065.31

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.