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Finding the Fourth Proportional to 536,882.78, 803,571.82 and 394,690.41

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Solution

The fourth proportional to 536,882.78, 803,571.82 and 394,690.41 is: 590,747.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,882.78 : 803,571.82 = 394,690.41 : x
  2. Step 2: Convert to fraction form
    536,882.78/803,571.82 = 394,690.41/x
  3. Step 3: Cross multiply
    536,882.78x = 803,571.82 × 394,690.41
  4. Step 4: Simplify right side
    536,882.78x = 317,162,090,113.52
  5. Step 5: Solve for x
    x = 317,162,090,113.52/536,882.78
  6. Step 6: Final answer
    x = 590,747.37

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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.