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Finding the Fourth Proportional to 366,519.78, 505,785.06 and 203,169.42

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Solution

The fourth proportional to 366,519.78, 505,785.06 and 203,169.42 is: 280,367.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,519.78 : 505,785.06 = 203,169.42 : x
  2. Step 2: Convert to fraction form
    366,519.78/505,785.06 = 203,169.42/x
  3. Step 3: Cross multiply
    366,519.78x = 505,785.06 × 203,169.42
  4. Step 4: Simplify right side
    366,519.78x = 102,760,057,284.87
  5. Step 5: Solve for x
    x = 102,760,057,284.87/366,519.78
  6. Step 6: Final answer
    x = 280,367.02

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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.