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Finding the Third Proportional to 301.75 and 441.75

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Solution

The third proportional to 301.75 and 441.75 is: 646.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.75 : 441.75 = 441.75 : x
  2. Step 2: Convert to fraction form
    301.75/441.75 = 441.75/x
  3. Step 3: Cross multiply
    301.75x = 441.75 × 441.75
  4. Step 4: Simplify right side
    301.75x = 195,143.06
  5. Step 5: Solve for x
    x = 195,143.06/301.75
  6. Step 6: Final answer
    x = 646.70

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.