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Finding the Fourth Proportional to 585,535.23, 878,369.67 and 225,691.72

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Solution

The fourth proportional to 585,535.23, 878,369.67 and 225,691.72 is: 338,563.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,535.23 : 878,369.67 = 225,691.72 : x
  2. Step 2: Convert to fraction form
    585,535.23/878,369.67 = 225,691.72/x
  3. Step 3: Cross multiply
    585,535.23x = 878,369.67 × 225,691.72
  4. Step 4: Simplify right side
    585,535.23x = 198,240,759,422.21
  5. Step 5: Solve for x
    x = 198,240,759,422.21/585,535.23
  6. Step 6: Final answer
    x = 338,563.33

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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.