Home / 3,579,400.43-4,939,573.40-1,969,768.43

Finding the Fourth Proportional to 3,579,400.43, 4,939,573.40 and 1,969,768.43

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Solution

The fourth proportional to 3,579,400.43, 4,939,573.40 and 1,969,768.43 is: 2,718,280.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579,400.43 : 4,939,573.40 = 1,969,768.43 : x
  2. Step 2: Convert to fraction form
    3,579,400.43/4,939,573.40 = 1,969,768.43/x
  3. Step 3: Cross multiply
    3,579,400.43x = 4,939,573.40 × 1,969,768.43
  4. Step 4: Simplify right side
    3,579,400.43x = 9,729,815,740,987.76
  5. Step 5: Solve for x
    x = 9,729,815,740,987.76/3,579,400.43
  6. Step 6: Final answer
    x = 2,718,280.88

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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.