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Finding the Fourth Proportional to 486,560.48, 671,447.12 and 271,704.32

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Solution

The fourth proportional to 486,560.48, 671,447.12 and 271,704.32 is: 374,948.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,560.48 : 671,447.12 = 271,704.32 : x
  2. Step 2: Convert to fraction form
    486,560.48/671,447.12 = 271,704.32/x
  3. Step 3: Cross multiply
    486,560.48x = 671,447.12 × 271,704.32
  4. Step 4: Simplify right side
    486,560.48x = 182,435,083,155.56
  5. Step 5: Solve for x
    x = 182,435,083,155.56/486,560.48
  6. Step 6: Final answer
    x = 374,948.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.