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Finding the Fourth Proportional to 661,879.29, 992,654.89 and 188,568.75

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Solution

The fourth proportional to 661,879.29, 992,654.89 and 188,568.75 is: 282,806.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,879.29 : 992,654.89 = 188,568.75 : x
  2. Step 2: Convert to fraction form
    661,879.29/992,654.89 = 188,568.75/x
  3. Step 3: Cross multiply
    661,879.29x = 992,654.89 × 188,568.75
  4. Step 4: Simplify right side
    661,879.29x = 187,183,691,788.69
  5. Step 5: Solve for x
    x = 187,183,691,788.69/661,879.29
  6. Step 6: Final answer
    x = 282,806.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.