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Finding the Fourth Proportional to 329,336.69, 492,651.77 and 262,906.56

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Solution

The fourth proportional to 329,336.69, 492,651.77 and 262,906.56 is: 393,279.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,336.69 : 492,651.77 = 262,906.56 : x
  2. Step 2: Convert to fraction form
    329,336.69/492,651.77 = 262,906.56/x
  3. Step 3: Cross multiply
    329,336.69x = 492,651.77 × 262,906.56
  4. Step 4: Simplify right side
    329,336.69x = 129,521,380,814.08
  5. Step 5: Solve for x
    x = 129,521,380,814.08/329,336.69
  6. Step 6: Final answer
    x = 393,279.54

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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.