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Finding the Fourth Proportional to 350,443.20, 483,611.32 and 189,298.20

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Solution

The fourth proportional to 350,443.20, 483,611.32 and 189,298.20 is: 261,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,443.20 : 483,611.32 = 189,298.20 : x
  2. Step 2: Convert to fraction form
    350,443.20/483,611.32 = 189,298.20/x
  3. Step 3: Cross multiply
    350,443.20x = 483,611.32 × 189,298.20
  4. Step 4: Simplify right side
    350,443.20x = 91,546,752,375.62
  5. Step 5: Solve for x
    x = 91,546,752,375.62/350,443.20
  6. Step 6: Final answer
    x = 261,231.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.