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Finding the Third Proportional to 389,203.50 and 836,611.50

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Solution

The third proportional to 389,203.50 and 836,611.50 is: 1,798,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,203.50 : 836,611.50 = 836,611.50 : x
  2. Step 2: Convert to fraction form
    389,203.50/836,611.50 = 836,611.50/x
  3. Step 3: Cross multiply
    389,203.50x = 836,611.50 × 836,611.50
  4. Step 4: Simplify right side
    389,203.50x = 699,918,801,932.25
  5. Step 5: Solve for x
    x = 699,918,801,932.25/389,203.50
  6. Step 6: Final answer
    x = 1,798,336.35

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.