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Finding the Fourth Proportional to 411,906.44, 568,137.36 and 378,024.34

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Solution

The fourth proportional to 411,906.44, 568,137.36 and 378,024.34 is: 521,404.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,906.44 : 568,137.36 = 378,024.34 : x
  2. Step 2: Convert to fraction form
    411,906.44/568,137.36 = 378,024.34/x
  3. Step 3: Cross multiply
    411,906.44x = 568,137.36 × 378,024.34
  4. Step 4: Simplify right side
    411,906.44x = 214,769,750,543.34
  5. Step 5: Solve for x
    x = 214,769,750,543.34/411,906.44
  6. Step 6: Final answer
    x = 521,404.21

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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.