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Finding the Fourth Proportional to 404,706.26, 558,491.51 and 223,418.43

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Solution

The fourth proportional to 404,706.26, 558,491.51 and 223,418.43 is: 308,315.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,706.26 : 558,491.51 = 223,418.43 : x
  2. Step 2: Convert to fraction form
    404,706.26/558,491.51 = 223,418.43/x
  3. Step 3: Cross multiply
    404,706.26x = 558,491.51 × 223,418.43
  4. Step 4: Simplify right side
    404,706.26x = 124,777,295,215.44
  5. Step 5: Solve for x
    x = 124,777,295,215.44/404,706.26
  6. Step 6: Final answer
    x = 308,315.71

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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.