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Finding the Third Proportional to 360.50 and 772

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Solution

The third proportional to 360.50 and 772 is: 1,653.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.50 : 772 = 772 : x
  2. Step 2: Convert to fraction form
    360.50/772 = 772/x
  3. Step 3: Cross multiply
    360.50x = 772 × 772
  4. Step 4: Simplify right side
    360.50x = 595,984
  5. Step 5: Solve for x
    x = 595,984/360.50
  6. Step 6: Final answer
    x = 1,653.21

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.