Home / 1,272,786.56-1,756,451.88-699,863.60

Finding the Fourth Proportional to 1,272,786.56, 1,756,451.88 and 699,863.60

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Solution

The fourth proportional to 1,272,786.56, 1,756,451.88 and 699,863.60 is: 965,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,786.56 : 1,756,451.88 = 699,863.60 : x
  2. Step 2: Convert to fraction form
    1,272,786.56/1,756,451.88 = 699,863.60/x
  3. Step 3: Cross multiply
    1,272,786.56x = 1,756,451.88 × 699,863.60
  4. Step 4: Simplify right side
    1,272,786.56x = 1,229,276,735,963.57
  5. Step 5: Solve for x
    x = 1,229,276,735,963.57/1,272,786.56
  6. Step 6: Final answer
    x = 965,815.30

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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.