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Finding the Fourth Proportional to 263,609.82, 394,639.56 and 163,448.46

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Solution

The fourth proportional to 263,609.82, 394,639.56 and 163,448.46 is: 244,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,609.82 : 394,639.56 = 163,448.46 : x
  2. Step 2: Convert to fraction form
    263,609.82/394,639.56 = 163,448.46/x
  3. Step 3: Cross multiply
    263,609.82x = 394,639.56 × 163,448.46
  4. Step 4: Simplify right side
    263,609.82x = 64,503,228,337.08
  5. Step 5: Solve for x
    x = 64,503,228,337.08/263,609.82
  6. Step 6: Final answer
    x = 244,692.05

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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.