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Finding the Third Proportional to 197.44 and 437.91

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Solution

The third proportional to 197.44 and 437.91 is: 971.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.44 : 437.91 = 437.91 : x
  2. Step 2: Convert to fraction form
    197.44/437.91 = 437.91/x
  3. Step 3: Cross multiply
    197.44x = 437.91 × 437.91
  4. Step 4: Simplify right side
    197.44x = 191,761.88
  5. Step 5: Solve for x
    x = 191,761.88/197.44
  6. Step 6: Final answer
    x = 971.25

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.