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Finding the Third Proportional to 190.75 and 449

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Solution

The third proportional to 190.75 and 449 is: 1,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.75 : 449 = 449 : x
  2. Step 2: Convert to fraction form
    190.75/449 = 449/x
  3. Step 3: Cross multiply
    190.75x = 449 × 449
  4. Step 4: Simplify right side
    190.75x = 201,601
  5. Step 5: Solve for x
    x = 201,601/190.75
  6. Step 6: Final answer
    x = 1,056.89

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.