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Finding the Fourth Proportional to 543,447.43, 815,299.22 and 534,410.26

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Solution

The fourth proportional to 543,447.43, 815,299.22 and 534,410.26 is: 801,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,447.43 : 815,299.22 = 534,410.26 : x
  2. Step 2: Convert to fraction form
    543,447.43/815,299.22 = 534,410.26/x
  3. Step 3: Cross multiply
    543,447.43x = 815,299.22 × 534,410.26
  4. Step 4: Simplify right side
    543,447.43x = 435,704,267,435.78
  5. Step 5: Solve for x
    x = 435,704,267,435.78/543,447.43
  6. Step 6: Final answer
    x = 801,741.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.