Home / 414,043.40-620,622.16-214,162.56

Finding the Fourth Proportional to 414,043.40, 620,622.16 and 214,162.56

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Solution

The fourth proportional to 414,043.40, 620,622.16 and 214,162.56 is: 321,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,043.40 : 620,622.16 = 214,162.56 : x
  2. Step 2: Convert to fraction form
    414,043.40/620,622.16 = 214,162.56/x
  3. Step 3: Cross multiply
    414,043.40x = 620,622.16 × 214,162.56
  4. Step 4: Simplify right side
    414,043.40x = 132,914,030,578.33
  5. Step 5: Solve for x
    x = 132,914,030,578.33/414,043.40
  6. Step 6: Final answer
    x = 321,014.73

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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.