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Finding the Third Proportional to 394 and 796

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Solution

The third proportional to 394 and 796 is: 1,608.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    394 : 796 = 796 : x
  2. Step 2: Convert to fraction form
    394/796 = 796/x
  3. Step 3: Cross multiply
    394x = 796 × 796
  4. Step 4: Simplify right side
    394x = 633,616
  5. Step 5: Solve for x
    x = 633,616/394
  6. Step 6: Final answer
    x = 1,608.16

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.