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Finding the Third Proportional to 294 and 717

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Solution

The third proportional to 294 and 717 is: 1,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    294 : 717 = 717 : x
  2. Step 2: Convert to fraction form
    294/717 = 717/x
  3. Step 3: Cross multiply
    294x = 717 × 717
  4. Step 4: Simplify right side
    294x = 514,089
  5. Step 5: Solve for x
    x = 514,089/294
  6. Step 6: Final answer
    x = 1,748.60

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Why These Related Problems?

These problems maintain the same ratio (2.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.