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Finding the Third Proportional to 453.75 and 994.38

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Solution

The third proportional to 453.75 and 994.38 is: 2,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.75 : 994.38 = 994.38 : x
  2. Step 2: Convert to fraction form
    453.75/994.38 = 994.38/x
  3. Step 3: Cross multiply
    453.75x = 994.38 × 994.38
  4. Step 4: Simplify right side
    453.75x = 988,781.64
  5. Step 5: Solve for x
    x = 988,781.64/453.75
  6. Step 6: Final answer
    x = 2,179.13

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.