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Finding the Fourth Proportional to 574,891.45, 861,683.26 and 349,755.61

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Solution

The fourth proportional to 574,891.45, 861,683.26 and 349,755.61 is: 524,235.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,891.45 : 861,683.26 = 349,755.61 : x
  2. Step 2: Convert to fraction form
    574,891.45/861,683.26 = 349,755.61/x
  3. Step 3: Cross multiply
    574,891.45x = 861,683.26 × 349,755.61
  4. Step 4: Simplify right side
    574,891.45x = 301,378,554,228.09
  5. Step 5: Solve for x
    x = 301,378,554,228.09/574,891.45
  6. Step 6: Final answer
    x = 524,235.58

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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.