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Finding the Fourth Proportional to 338,661.69, 467,358.38 and 185,713.85

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Solution

The fourth proportional to 338,661.69, 467,358.38 and 185,713.85 is: 256,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,661.69 : 467,358.38 = 185,713.85 : x
  2. Step 2: Convert to fraction form
    338,661.69/467,358.38 = 185,713.85/x
  3. Step 3: Cross multiply
    338,661.69x = 467,358.38 × 185,713.85
  4. Step 4: Simplify right side
    338,661.69x = 86,794,920,814.20
  5. Step 5: Solve for x
    x = 86,794,920,814.20/338,661.69
  6. Step 6: Final answer
    x = 256,287.98

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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.