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Finding the Third Proportional to 389,764.75 and 854,008.75

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Solution

The third proportional to 389,764.75 and 854,008.75 is: 1,871,208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,764.75 : 854,008.75 = 854,008.75 : x
  2. Step 2: Convert to fraction form
    389,764.75/854,008.75 = 854,008.75/x
  3. Step 3: Cross multiply
    389,764.75x = 854,008.75 × 854,008.75
  4. Step 4: Simplify right side
    389,764.75x = 729,330,945,076.56
  5. Step 5: Solve for x
    x = 729,330,945,076.56/389,764.75
  6. Step 6: Final answer
    x = 1,871,208.07

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.