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Finding the Third Proportional to 388,563.19 and 836,175.38

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Solution

The third proportional to 388,563.19 and 836,175.38 is: 1,799,422.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,563.19 : 836,175.38 = 836,175.38 : x
  2. Step 2: Convert to fraction form
    388,563.19/836,175.38 = 836,175.38/x
  3. Step 3: Cross multiply
    388,563.19x = 836,175.38 × 836,175.38
  4. Step 4: Simplify right side
    388,563.19x = 699,189,257,756.39
  5. Step 5: Solve for x
    x = 699,189,257,756.39/388,563.19
  6. Step 6: Final answer
    x = 1,799,422.28

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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.