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Finding the Fourth Proportional to 700,879.52, 967,214.13 and 378,589.62

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Solution

The fourth proportional to 700,879.52, 967,214.13 and 378,589.62 is: 522,453.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,879.52 : 967,214.13 = 378,589.62 : x
  2. Step 2: Convert to fraction form
    700,879.52/967,214.13 = 378,589.62/x
  3. Step 3: Cross multiply
    700,879.52x = 967,214.13 × 378,589.62
  4. Step 4: Simplify right side
    700,879.52x = 366,177,229,935.33
  5. Step 5: Solve for x
    x = 366,177,229,935.33/700,879.52
  6. Step 6: Final answer
    x = 522,453.89

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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.