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Finding the Third Proportional to 294 and 665

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Solution

The third proportional to 294 and 665 is: 1,504.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    294 : 665 = 665 : x
  2. Step 2: Convert to fraction form
    294/665 = 665/x
  3. Step 3: Cross multiply
    294x = 665 × 665
  4. Step 4: Simplify right side
    294x = 442,225
  5. Step 5: Solve for x
    x = 442,225/294
  6. Step 6: Final answer
    x = 1,504.17

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.