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Finding the Third Proportional to 294.25 and 664.25

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Solution

The third proportional to 294.25 and 664.25 is: 1,499.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.25 : 664.25 = 664.25 : x
  2. Step 2: Convert to fraction form
    294.25/664.25 = 664.25/x
  3. Step 3: Cross multiply
    294.25x = 664.25 × 664.25
  4. Step 4: Simplify right side
    294.25x = 441,228.06
  5. Step 5: Solve for x
    x = 441,228.06/294.25
  6. Step 6: Final answer
    x = 1,499.50

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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.