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Finding the Fourth Proportional to 568,048.40, 852,072.60 and 287,529.20

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Solution

The fourth proportional to 568,048.40, 852,072.60 and 287,529.20 is: 431,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,048.40 : 852,072.60 = 287,529.20 : x
  2. Step 2: Convert to fraction form
    568,048.40/852,072.60 = 287,529.20/x
  3. Step 3: Cross multiply
    568,048.40x = 852,072.60 × 287,529.20
  4. Step 4: Simplify right side
    568,048.40x = 244,995,753,019.92
  5. Step 5: Solve for x
    x = 244,995,753,019.92/568,048.40
  6. Step 6: Final answer
    x = 431,293.80

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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.