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Finding the Third Proportional to 486 and 794

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Solution

The third proportional to 486 and 794 is: 1,297.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    486 : 794 = 794 : x
  2. Step 2: Convert to fraction form
    486/794 = 794/x
  3. Step 3: Cross multiply
    486x = 794 × 794
  4. Step 4: Simplify right side
    486x = 630,436
  5. Step 5: Solve for x
    x = 630,436/486
  6. Step 6: Final answer
    x = 1,297.19

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.