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Finding the Third Proportional to 194 and 406

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Solution

The third proportional to 194 and 406 is: 849.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    194 : 406 = 406 : x
  2. Step 2: Convert to fraction form
    194/406 = 406/x
  3. Step 3: Cross multiply
    194x = 406 × 406
  4. Step 4: Simplify right side
    194x = 164,836
  5. Step 5: Solve for x
    x = 164,836/194
  6. Step 6: Final answer
    x = 849.67

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.