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Finding the Fourth Proportional to 262,914.40, 394,414.80 and 113,226.40

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Solution

The fourth proportional to 262,914.40, 394,414.80 and 113,226.40 is: 169,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,914.40 : 394,414.80 = 113,226.40 : x
  2. Step 2: Convert to fraction form
    262,914.40/394,414.80 = 113,226.40/x
  3. Step 3: Cross multiply
    262,914.40x = 394,414.80 × 113,226.40
  4. Step 4: Simplify right side
    262,914.40x = 44,658,167,910.72
  5. Step 5: Solve for x
    x = 44,658,167,910.72/262,914.40
  6. Step 6: Final answer
    x = 169,858.20

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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.