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Finding the Third Proportional to 326.25 and 702.25

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Solution

The third proportional to 326.25 and 702.25 is: 1,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.25 : 702.25 = 702.25 : x
  2. Step 2: Convert to fraction form
    326.25/702.25 = 702.25/x
  3. Step 3: Cross multiply
    326.25x = 702.25 × 702.25
  4. Step 4: Simplify right side
    326.25x = 493,155.06
  5. Step 5: Solve for x
    x = 493,155.06/326.25
  6. Step 6: Final answer
    x = 1,511.59

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.