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Finding the Fourth Proportional to 568,049.56, 783,910.92 and 313,408.24

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Solution

The fourth proportional to 568,049.56, 783,910.92 and 313,408.24 is: 432,504.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,049.56 : 783,910.92 = 313,408.24 : x
  2. Step 2: Convert to fraction form
    568,049.56/783,910.92 = 313,408.24/x
  3. Step 3: Cross multiply
    568,049.56x = 783,910.92 × 313,408.24
  4. Step 4: Simplify right side
    568,049.56x = 245,684,141,753.98
  5. Step 5: Solve for x
    x = 245,684,141,753.98/568,049.56
  6. Step 6: Final answer
    x = 432,504.77

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1.5x scale

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.