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Finding the Third Proportional to 369.75 and 542.63

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Solution

The third proportional to 369.75 and 542.63 is: 796.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.75 : 542.63 = 542.63 : x
  2. Step 2: Convert to fraction form
    369.75/542.63 = 542.63/x
  3. Step 3: Cross multiply
    369.75x = 542.63 × 542.63
  4. Step 4: Simplify right side
    369.75x = 294,441.89
  5. Step 5: Solve for x
    x = 294,441.89/369.75
  6. Step 6: Final answer
    x = 796.33

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.