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Finding the Fourth Proportional to 486,010.25, 670,713.59 and 271,169.09

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Solution

The fourth proportional to 486,010.25, 670,713.59 and 271,169.09 is: 374,224.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,010.25 : 670,713.59 = 271,169.09 : x
  2. Step 2: Convert to fraction form
    486,010.25/670,713.59 = 271,169.09/x
  3. Step 3: Cross multiply
    486,010.25x = 670,713.59 × 271,169.09
  4. Step 4: Simplify right side
    486,010.25x = 181,876,793,850.93
  5. Step 5: Solve for x
    x = 181,876,793,850.93/486,010.25
  6. Step 6: Final answer
    x = 374,224.19

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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.