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Finding the Fourth Proportional to 568,217.89, 851,293.17 and 330,840.91

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Solution

The fourth proportional to 568,217.89, 851,293.17 and 330,840.91 is: 495,659.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,217.89 : 851,293.17 = 330,840.91 : x
  2. Step 2: Convert to fraction form
    568,217.89/851,293.17 = 330,840.91/x
  3. Step 3: Cross multiply
    568,217.89x = 851,293.17 × 330,840.91
  4. Step 4: Simplify right side
    568,217.89x = 281,642,604,911.35
  5. Step 5: Solve for x
    x = 281,642,604,911.35/568,217.89
  6. Step 6: Final answer
    x = 495,659.52

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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.