Home / 1,761,725.20-2,640,514.20-919,843.60

Finding the Fourth Proportional to 1,761,725.20, 2,640,514.20 and 919,843.60

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Solution

The fourth proportional to 1,761,725.20, 2,640,514.20 and 919,843.60 is: 1,378,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,725.20 : 2,640,514.20 = 919,843.60 : x
  2. Step 2: Convert to fraction form
    1,761,725.20/2,640,514.20 = 919,843.60/x
  3. Step 3: Cross multiply
    1,761,725.20x = 2,640,514.20 × 919,843.60
  4. Step 4: Simplify right side
    1,761,725.20x = 2,428,860,087,579.12
  5. Step 5: Solve for x
    x = 2,428,860,087,579.12/1,761,725.20
  6. Step 6: Final answer
    x = 1,378,682.72

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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.