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Finding the Third Proportional to 360.50 and 788

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Solution

The third proportional to 360.50 and 788 is: 1,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.50 : 788 = 788 : x
  2. Step 2: Convert to fraction form
    360.50/788 = 788/x
  3. Step 3: Cross multiply
    360.50x = 788 × 788
  4. Step 4: Simplify right side
    360.50x = 620,944
  5. Step 5: Solve for x
    x = 620,944/360.50
  6. Step 6: Final answer
    x = 1,722.45

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.