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Finding the Fourth Proportional to 411,940.78, 568,462.52 and 230,635.76

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Solution

The fourth proportional to 411,940.78, 568,462.52 and 230,635.76 is: 318,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,940.78 : 568,462.52 = 230,635.76 : x
  2. Step 2: Convert to fraction form
    411,940.78/568,462.52 = 230,635.76/x
  3. Step 3: Cross multiply
    411,940.78x = 568,462.52 × 230,635.76
  4. Step 4: Simplify right side
    411,940.78x = 131,107,785,331.72
  5. Step 5: Solve for x
    x = 131,107,785,331.72/411,940.78
  6. Step 6: Final answer
    x = 318,268.53

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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.