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Finding the Fourth Proportional to 547,194.13, 755,140.66 and 343,253.66

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Solution

The fourth proportional to 547,194.13, 755,140.66 and 343,253.66 is: 473,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,194.13 : 755,140.66 = 343,253.66 : x
  2. Step 2: Convert to fraction form
    547,194.13/755,140.66 = 343,253.66/x
  3. Step 3: Cross multiply
    547,194.13x = 755,140.66 × 343,253.66
  4. Step 4: Simplify right side
    547,194.13x = 259,204,790,725.98
  5. Step 5: Solve for x
    x = 259,204,790,725.98/547,194.13
  6. Step 6: Final answer
    x = 473,698.05

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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.