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Finding the Fourth Proportional to 547,467.90, 821,662.65 and 267,224.70

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Solution

The fourth proportional to 547,467.90, 821,662.65 and 267,224.70 is: 401,061.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,467.90 : 821,662.65 = 267,224.70 : x
  2. Step 2: Convert to fraction form
    547,467.90/821,662.65 = 267,224.70/x
  3. Step 3: Cross multiply
    547,467.90x = 821,662.65 × 267,224.70
  4. Step 4: Simplify right side
    547,467.90x = 219,568,555,147.46
  5. Step 5: Solve for x
    x = 219,568,555,147.46/547,467.90
  6. Step 6: Final answer
    x = 401,061.97

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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.