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Finding the Third Proportional to 294.75 and 613.50

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Solution

The third proportional to 294.75 and 613.50 is: 1,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.75 : 613.50 = 613.50 : x
  2. Step 2: Convert to fraction form
    294.75/613.50 = 613.50/x
  3. Step 3: Cross multiply
    294.75x = 613.50 × 613.50
  4. Step 4: Simplify right side
    294.75x = 376,382.25
  5. Step 5: Solve for x
    x = 376,382.25/294.75
  6. Step 6: Final answer
    x = 1,276.95

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.