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Finding the Third Proportional to 448 and 997

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Solution

The third proportional to 448 and 997 is: 2,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    448 : 997 = 997 : x
  2. Step 2: Convert to fraction form
    448/997 = 997/x
  3. Step 3: Cross multiply
    448x = 997 × 997
  4. Step 4: Simplify right side
    448x = 994,009
  5. Step 5: Solve for x
    x = 994,009/448
  6. Step 6: Final answer
    x = 2,218.77

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.