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Finding the Fourth Proportional to 547,843.27, 821,154.27 and 227,815.91

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Solution

The fourth proportional to 547,843.27, 821,154.27 and 227,815.91 is: 341,469.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,843.27 : 821,154.27 = 227,815.91 : x
  2. Step 2: Convert to fraction form
    547,843.27/821,154.27 = 227,815.91/x
  3. Step 3: Cross multiply
    547,843.27x = 821,154.27 × 227,815.91
  4. Step 4: Simplify right side
    547,843.27x = 187,072,007,270.44
  5. Step 5: Solve for x
    x = 187,072,007,270.44/547,843.27
  6. Step 6: Final answer
    x = 341,469.94

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1.5x scale

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.