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Finding the Fourth Proportional to 400,409.42, 600,195.69 and 133,950.74

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Solution

The fourth proportional to 400,409.42, 600,195.69 and 133,950.74 is: 200,786.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,409.42 : 600,195.69 = 133,950.74 : x
  2. Step 2: Convert to fraction form
    400,409.42/600,195.69 = 133,950.74/x
  3. Step 3: Cross multiply
    400,409.42x = 600,195.69 × 133,950.74
  4. Step 4: Simplify right side
    400,409.42x = 80,396,653,819.33
  5. Step 5: Solve for x
    x = 80,396,653,819.33/400,409.42
  6. Step 6: Final answer
    x = 200,786.12

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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.