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Finding the Fourth Proportional to 271,207.76, 406,879.39 and 191,401.55

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Solution

The fourth proportional to 271,207.76, 406,879.39 and 191,401.55 is: 287,150.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,207.76 : 406,879.39 = 191,401.55 : x
  2. Step 2: Convert to fraction form
    271,207.76/406,879.39 = 191,401.55/x
  3. Step 3: Cross multiply
    271,207.76x = 406,879.39 × 191,401.55
  4. Step 4: Simplify right side
    271,207.76x = 77,877,343,874.66
  5. Step 5: Solve for x
    x = 77,877,343,874.66/271,207.76
  6. Step 6: Final answer
    x = 287,150.13

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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.