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Finding the Third Proportional to 539.25 and 722.63

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Solution

The third proportional to 539.25 and 722.63 is: 968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.25 : 722.63 = 722.63 : x
  2. Step 2: Convert to fraction form
    539.25/722.63 = 722.63/x
  3. Step 3: Cross multiply
    539.25x = 722.63 × 722.63
  4. Step 4: Simplify right side
    539.25x = 522,186.89
  5. Step 5: Solve for x
    x = 522,186.89/539.25
  6. Step 6: Final answer
    x = 968.36

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.