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Finding the Third Proportional to 656.44 and 936.56

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Solution

The third proportional to 656.44 and 936.56 is: 1,336.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.44 : 936.56 = 936.56 : x
  2. Step 2: Convert to fraction form
    656.44/936.56 = 936.56/x
  3. Step 3: Cross multiply
    656.44x = 936.56 × 936.56
  4. Step 4: Simplify right side
    656.44x = 877,149.32
  5. Step 5: Solve for x
    x = 877,149.32/656.44
  6. Step 6: Final answer
    x = 1,336.23

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.