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Finding the Third Proportional to 230.75 and 493.50

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Solution

The third proportional to 230.75 and 493.50 is: 1,055.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.75 : 493.50 = 493.50 : x
  2. Step 2: Convert to fraction form
    230.75/493.50 = 493.50/x
  3. Step 3: Cross multiply
    230.75x = 493.50 × 493.50
  4. Step 4: Simplify right side
    230.75x = 243,542.25
  5. Step 5: Solve for x
    x = 243,542.25/230.75
  6. Step 6: Final answer
    x = 1,055.44

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.