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Finding the Third Proportional to 427,630.50 and 929,181

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Solution

The third proportional to 427,630.50 and 929,181 is: 2,018,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,630.50 : 929,181 = 929,181 : x
  2. Step 2: Convert to fraction form
    427,630.50/929,181 = 929,181/x
  3. Step 3: Cross multiply
    427,630.50x = 929,181 × 929,181
  4. Step 4: Simplify right side
    427,630.50x = 863,377,330,761
  5. Step 5: Solve for x
    x = 863,377,330,761/427,630.50
  6. Step 6: Final answer
    x = 2,018,979.78

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.