Home / 1,965,212.10-2,712,116.28-1,190,910.72

Finding the Fourth Proportional to 1,965,212.10, 2,712,116.28 and 1,190,910.72

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Solution

The fourth proportional to 1,965,212.10, 2,712,116.28 and 1,190,910.72 is: 1,643,531.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,212.10 : 2,712,116.28 = 1,190,910.72 : x
  2. Step 2: Convert to fraction form
    1,965,212.10/2,712,116.28 = 1,190,910.72/x
  3. Step 3: Cross multiply
    1,965,212.10x = 2,712,116.28 × 1,190,910.72
  4. Step 4: Simplify right side
    1,965,212.10x = 3,229,888,351,738.52
  5. Step 5: Solve for x
    x = 3,229,888,351,738.52/1,965,212.10
  6. Step 6: Final answer
    x = 1,643,531.68

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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.