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Finding the Third Proportional to 471.50 and 917

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Solution

The third proportional to 471.50 and 917 is: 1,783.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.50 : 917 = 917 : x
  2. Step 2: Convert to fraction form
    471.50/917 = 917/x
  3. Step 3: Cross multiply
    471.50x = 917 × 917
  4. Step 4: Simplify right side
    471.50x = 840,889
  5. Step 5: Solve for x
    x = 840,889/471.50
  6. Step 6: Final answer
    x = 1,783.43

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Why These Related Problems?

These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.