Home / 1,288,615.19-1,778,185.25-744,786.20

Finding the Fourth Proportional to 1,288,615.19, 1,778,185.25 and 744,786.20

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Solution

The fourth proportional to 1,288,615.19, 1,778,185.25 and 744,786.20 is: 1,027,745.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,615.19 : 1,778,185.25 = 744,786.20 : x
  2. Step 2: Convert to fraction form
    1,288,615.19/1,778,185.25 = 744,786.20/x
  3. Step 3: Cross multiply
    1,288,615.19x = 1,778,185.25 × 744,786.20
  4. Step 4: Simplify right side
    1,288,615.19x = 1,324,367,837,946.31
  5. Step 5: Solve for x
    x = 1,324,367,837,946.31/1,288,615.19
  6. Step 6: Final answer
    x = 1,027,745.02

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Double scale
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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.