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Finding the Fourth Proportional to 262,778.85, 394,194.15 and 70,650.90

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Solution

The fourth proportional to 262,778.85, 394,194.15 and 70,650.90 is: 105,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,778.85 : 394,194.15 = 70,650.90 : x
  2. Step 2: Convert to fraction form
    262,778.85/394,194.15 = 70,650.90/x
  3. Step 3: Cross multiply
    262,778.85x = 394,194.15 × 70,650.90
  4. Step 4: Simplify right side
    262,778.85x = 27,850,171,472.24
  5. Step 5: Solve for x
    x = 27,850,171,472.24/262,778.85
  6. Step 6: Final answer
    x = 105,983.31

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1.5x scale

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.