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Finding the Fourth Proportional to 574,601.27, 861,302.97 and 321,510.69

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Solution

The fourth proportional to 574,601.27, 861,302.97 and 321,510.69 is: 481,930.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,601.27 : 861,302.97 = 321,510.69 : x
  2. Step 2: Convert to fraction form
    574,601.27/861,302.97 = 321,510.69/x
  3. Step 3: Cross multiply
    574,601.27x = 861,302.97 × 321,510.69
  4. Step 4: Simplify right side
    574,601.27x = 276,918,112,183.75
  5. Step 5: Solve for x
    x = 276,918,112,183.75/574,601.27
  6. Step 6: Final answer
    x = 481,930.91

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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.