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Finding the Third Proportional to 648 and 1,196

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Solution

The third proportional to 648 and 1,196 is: 2,207.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    648 : 1,196 = 1,196 : x
  2. Step 2: Convert to fraction form
    648/1,196 = 1,196/x
  3. Step 3: Cross multiply
    648x = 1,196 × 1,196
  4. Step 4: Simplify right side
    648x = 1,430,416
  5. Step 5: Solve for x
    x = 1,430,416/648
  6. Step 6: Final answer
    x = 2,207.43

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.