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Finding the Third Proportional to 294.38 and 649.25

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Solution

The third proportional to 294.38 and 649.25 is: 1,431.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.38 : 649.25 = 649.25 : x
  2. Step 2: Convert to fraction form
    294.38/649.25 = 649.25/x
  3. Step 3: Cross multiply
    294.38x = 649.25 × 649.25
  4. Step 4: Simplify right side
    294.38x = 421,525.56
  5. Step 5: Solve for x
    x = 421,525.56/294.38
  6. Step 6: Final answer
    x = 1,431.93

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.