Home / 1,953,078.30-2,694,055.41-1,290,789.09

Finding the Fourth Proportional to 1,953,078.30, 2,694,055.41 and 1,290,789.09

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Solution

The fourth proportional to 1,953,078.30, 2,694,055.41 and 1,290,789.09 is: 1,780,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953,078.30 : 2,694,055.41 = 1,290,789.09 : x
  2. Step 2: Convert to fraction form
    1,953,078.30/2,694,055.41 = 1,290,789.09/x
  3. Step 3: Cross multiply
    1,953,078.30x = 2,694,055.41 × 1,290,789.09
  4. Step 4: Simplify right side
    1,953,078.30x = 3,477,457,331,083.48
  5. Step 5: Solve for x
    x = 3,477,457,331,083.48/1,953,078.30
  6. Step 6: Final answer
    x = 1,780,500.73

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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.