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Finding the Fourth Proportional to 400,162.44, 599,689.62 and 200,228.52

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Solution

The fourth proportional to 400,162.44, 599,689.62 and 200,228.52 is: 300,065.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,162.44 : 599,689.62 = 200,228.52 : x
  2. Step 2: Convert to fraction form
    400,162.44/599,689.62 = 200,228.52/x
  3. Step 3: Cross multiply
    400,162.44x = 599,689.62 × 200,228.52
  4. Step 4: Simplify right side
    400,162.44x = 120,074,965,071.96
  5. Step 5: Solve for x
    x = 120,074,965,071.96/400,162.44
  6. Step 6: Final answer
    x = 300,065.56

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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.