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Finding the Fourth Proportional to 547,589.97, 755,599.46 and 305,841.69

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Solution

The fourth proportional to 547,589.97, 755,599.46 and 305,841.69 is: 422,019.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,589.97 : 755,599.46 = 305,841.69 : x
  2. Step 2: Convert to fraction form
    547,589.97/755,599.46 = 305,841.69/x
  3. Step 3: Cross multiply
    547,589.97x = 755,599.46 × 305,841.69
  4. Step 4: Simplify right side
    547,589.97x = 231,093,814,280.28
  5. Step 5: Solve for x
    x = 231,093,814,280.28/547,589.97
  6. Step 6: Final answer
    x = 422,019.81

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1.5x scale

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.