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Finding the Fourth Proportional to 262,905.20, 394,012.20 and 233,183.60

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Solution

The fourth proportional to 262,905.20, 394,012.20 and 233,183.60 is: 349,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,905.20 : 394,012.20 = 233,183.60 : x
  2. Step 2: Convert to fraction form
    262,905.20/394,012.20 = 233,183.60/x
  3. Step 3: Cross multiply
    262,905.20x = 394,012.20 × 233,183.60
  4. Step 4: Simplify right side
    262,905.20x = 91,877,183,239.92
  5. Step 5: Solve for x
    x = 91,877,183,239.92/262,905.20
  6. Step 6: Final answer
    x = 349,468.87

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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.