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Finding the Fourth Proportional to 336,855.98, 505,031.22 and 203,708.96

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Solution

The fourth proportional to 336,855.98, 505,031.22 and 203,708.96 is: 305,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,855.98 : 505,031.22 = 203,708.96 : x
  2. Step 2: Convert to fraction form
    336,855.98/505,031.22 = 203,708.96/x
  3. Step 3: Cross multiply
    336,855.98x = 505,031.22 × 203,708.96
  4. Step 4: Simplify right side
    336,855.98x = 102,879,384,593.73
  5. Step 5: Solve for x
    x = 102,879,384,593.73/336,855.98
  6. Step 6: Final answer
    x = 305,410.59

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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.