Home / 1,761,180.60-2,640,021.30-861,886.20

Finding the Fourth Proportional to 1,761,180.60, 2,640,021.30 and 861,886.20

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Solution

The fourth proportional to 1,761,180.60, 2,640,021.30 and 861,886.20 is: 1,291,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,180.60 : 2,640,021.30 = 861,886.20 : x
  2. Step 2: Convert to fraction form
    1,761,180.60/2,640,021.30 = 861,886.20/x
  3. Step 3: Cross multiply
    1,761,180.60x = 2,640,021.30 × 861,886.20
  4. Step 4: Simplify right side
    1,761,180.60x = 2,275,397,926,176.06
  5. Step 5: Solve for x
    x = 2,275,397,926,176.06/1,761,180.60
  6. Step 6: Final answer
    x = 1,291,973.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.