Home / 2,028,849.20-2,802,728.24-1,620,414.80

Finding the Fourth Proportional to 2,028,849.20, 2,802,728.24 and 1,620,414.80

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Solution

The fourth proportional to 2,028,849.20, 2,802,728.24 and 1,620,414.80 is: 2,238,501.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028,849.20 : 2,802,728.24 = 1,620,414.80 : x
  2. Step 2: Convert to fraction form
    2,028,849.20/2,802,728.24 = 1,620,414.80/x
  3. Step 3: Cross multiply
    2,028,849.20x = 2,802,728.24 × 1,620,414.80
  4. Step 4: Simplify right side
    2,028,849.20x = 4,541,582,320,473.95
  5. Step 5: Solve for x
    x = 4,541,582,320,473.95/2,028,849.20
  6. Step 6: Final answer
    x = 2,238,501.67

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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.