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Finding the Third Proportional to 294 and 402.38

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Solution

The third proportional to 294 and 402.38 is: 550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    294 : 402.38 = 402.38 : x
  2. Step 2: Convert to fraction form
    294/402.38 = 402.38/x
  3. Step 3: Cross multiply
    294x = 402.38 × 402.38
  4. Step 4: Simplify right side
    294x = 161,905.64
  5. Step 5: Solve for x
    x = 161,905.64/294
  6. Step 6: Final answer
    x = 550.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.