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Finding the Fourth Proportional to 439,453.78, 659,175.85 and 333,488.66

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Solution

The fourth proportional to 439,453.78, 659,175.85 and 333,488.66 is: 500,229.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,453.78 : 659,175.85 = 333,488.66 : x
  2. Step 2: Convert to fraction form
    439,453.78/659,175.85 = 333,488.66/x
  3. Step 3: Cross multiply
    439,453.78x = 659,175.85 × 333,488.66
  4. Step 4: Simplify right side
    439,453.78x = 219,827,670,920.86
  5. Step 5: Solve for x
    x = 219,827,670,920.86/439,453.78
  6. Step 6: Final answer
    x = 500,229.33

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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.