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Finding the Third Proportional to 362.60 and 770.77

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Solution

The third proportional to 362.60 and 770.77 is: 1,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.60 : 770.77 = 770.77 : x
  2. Step 2: Convert to fraction form
    362.60/770.77 = 770.77/x
  3. Step 3: Cross multiply
    362.60x = 770.77 × 770.77
  4. Step 4: Simplify right side
    362.60x = 594,079.65
  5. Step 5: Solve for x
    x = 594,079.65/362.60
  6. Step 6: Final answer
    x = 1,638.38

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.