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Finding the Third Proportional to 484.73 and 761.91

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Solution

The third proportional to 484.73 and 761.91 is: 1,197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.73 : 761.91 = 761.91 : x
  2. Step 2: Convert to fraction form
    484.73/761.91 = 761.91/x
  3. Step 3: Cross multiply
    484.73x = 761.91 × 761.91
  4. Step 4: Simplify right side
    484.73x = 580,501.13
  5. Step 5: Solve for x
    x = 580,501.13/484.73
  6. Step 6: Final answer
    x = 1,197.57

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.