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Finding the Third Proportional to 619.37 and 960.73

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Solution

The third proportional to 619.37 and 960.73 is: 1,490.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.37 : 960.73 = 960.73 : x
  2. Step 2: Convert to fraction form
    619.37/960.73 = 960.73/x
  3. Step 3: Cross multiply
    619.37x = 960.73 × 960.73
  4. Step 4: Simplify right side
    619.37x = 922,998.34
  5. Step 5: Solve for x
    x = 922,998.34/619.37
  6. Step 6: Final answer
    x = 1,490.23

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.