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Finding the Third Proportional to 473 and 693.50

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Solution

The third proportional to 473 and 693.50 is: 1,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    473 : 693.50 = 693.50 : x
  2. Step 2: Convert to fraction form
    473/693.50 = 693.50/x
  3. Step 3: Cross multiply
    473x = 693.50 × 693.50
  4. Step 4: Simplify right side
    473x = 480,942.25
  5. Step 5: Solve for x
    x = 480,942.25/473
  6. Step 6: Final answer
    x = 1,016.79

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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.