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Finding the Fourth Proportional to 262,337.40, 394,380.90 and 223,846.20

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Solution

The fourth proportional to 262,337.40, 394,380.90 and 223,846.20 is: 336,515.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,337.40 : 394,380.90 = 223,846.20 : x
  2. Step 2: Convert to fraction form
    262,337.40/394,380.90 = 223,846.20/x
  3. Step 3: Cross multiply
    262,337.40x = 394,380.90 × 223,846.20
  4. Step 4: Simplify right side
    262,337.40x = 88,280,665,817.58
  5. Step 5: Solve for x
    x = 88,280,665,817.58/262,337.40
  6. Step 6: Final answer
    x = 336,515.75

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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.