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Finding the Fourth Proportional to 568,217.51, 851,292.61 and 330,840.53

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Solution

The fourth proportional to 568,217.51, 851,292.61 and 330,840.53 is: 495,658.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,217.51 : 851,292.61 = 330,840.53 : x
  2. Step 2: Convert to fraction form
    568,217.51/851,292.61 = 330,840.53/x
  3. Step 3: Cross multiply
    568,217.51x = 851,292.61 × 330,840.53
  4. Step 4: Simplify right side
    568,217.51x = 281,642,099,578.61
  5. Step 5: Solve for x
    x = 281,642,099,578.61/568,217.51
  6. Step 6: Final answer
    x = 495,658.96

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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.