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Finding the Third Proportional to 440.44 and 655.59

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Solution

The third proportional to 440.44 and 655.59 is: 975.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.44 : 655.59 = 655.59 : x
  2. Step 2: Convert to fraction form
    440.44/655.59 = 655.59/x
  3. Step 3: Cross multiply
    440.44x = 655.59 × 655.59
  4. Step 4: Simplify right side
    440.44x = 429,803.17
  5. Step 5: Solve for x
    x = 429,803.17/440.44
  6. Step 6: Final answer
    x = 975.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.