Home / 1,279,622.97-1,919,429.01-521,295.30

Finding the Fourth Proportional to 1,279,622.97, 1,919,429.01 and 521,295.30

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Solution

The fourth proportional to 1,279,622.97, 1,919,429.01 and 521,295.30 is: 781,940.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,622.97 : 1,919,429.01 = 521,295.30 : x
  2. Step 2: Convert to fraction form
    1,279,622.97/1,919,429.01 = 521,295.30/x
  3. Step 3: Cross multiply
    1,279,622.97x = 1,919,429.01 × 521,295.30
  4. Step 4: Simplify right side
    1,279,622.97x = 1,000,589,321,596.65
  5. Step 5: Solve for x
    x = 1,000,589,321,596.65/1,279,622.97
  6. Step 6: Final answer
    x = 781,940.73

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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.