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Finding the Fourth Proportional to 427,843.15, 590,400.14 and 234,213.41

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Solution

The fourth proportional to 427,843.15, 590,400.14 and 234,213.41 is: 323,201.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,843.15 : 590,400.14 = 234,213.41 : x
  2. Step 2: Convert to fraction form
    427,843.15/590,400.14 = 234,213.41/x
  3. Step 3: Cross multiply
    427,843.15x = 590,400.14 × 234,213.41
  4. Step 4: Simplify right side
    427,843.15x = 138,279,630,053.88
  5. Step 5: Solve for x
    x = 138,279,630,053.88/427,843.15
  6. Step 6: Final answer
    x = 323,201.69

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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.