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Finding the Fourth Proportional to 532,859.40, 800,163.90 and 356,149.80

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Solution

The fourth proportional to 532,859.40, 800,163.90 and 356,149.80 is: 534,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,859.40 : 800,163.90 = 356,149.80 : x
  2. Step 2: Convert to fraction form
    532,859.40/800,163.90 = 356,149.80/x
  3. Step 3: Cross multiply
    532,859.40x = 800,163.90 × 356,149.80
  4. Step 4: Simplify right side
    532,859.40x = 284,978,212,952.22
  5. Step 5: Solve for x
    x = 284,978,212,952.22/532,859.40
  6. Step 6: Final answer
    x = 534,809.39

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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.