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Finding the Fourth Proportional to 568,519.28, 853,224.63 and 396,623.15

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Solution

The fourth proportional to 568,519.28, 853,224.63 and 396,623.15 is: 595,245.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,519.28 : 853,224.63 = 396,623.15 : x
  2. Step 2: Convert to fraction form
    568,519.28/853,224.63 = 396,623.15/x
  3. Step 3: Cross multiply
    568,519.28x = 853,224.63 × 396,623.15
  4. Step 4: Simplify right side
    568,519.28x = 338,408,640,408.19
  5. Step 5: Solve for x
    x = 338,408,640,408.19/568,519.28
  6. Step 6: Final answer
    x = 595,245.67

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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.