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Finding the Third Proportional to 294.50 and 442.25

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Solution

The third proportional to 294.50 and 442.25 is: 664.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.50 : 442.25 = 442.25 : x
  2. Step 2: Convert to fraction form
    294.50/442.25 = 442.25/x
  3. Step 3: Cross multiply
    294.50x = 442.25 × 442.25
  4. Step 4: Simplify right side
    294.50x = 195,585.06
  5. Step 5: Solve for x
    x = 195,585.06/294.50
  6. Step 6: Final answer
    x = 664.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.