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Finding the Fourth Proportional to 568,730.34, 785,168.20 and 394,552.20

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Solution

The fourth proportional to 568,730.34, 785,168.20 and 394,552.20 is: 544,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,730.34 : 785,168.20 = 394,552.20 : x
  2. Step 2: Convert to fraction form
    568,730.34/785,168.20 = 394,552.20/x
  3. Step 3: Cross multiply
    568,730.34x = 785,168.20 × 394,552.20
  4. Step 4: Simplify right side
    568,730.34x = 309,789,840,680.04
  5. Step 5: Solve for x
    x = 309,789,840,680.04/568,730.34
  6. Step 6: Final answer
    x = 544,704.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.