Home / 1,179,808.43-1,628,260.55-721,191.44

Finding the Fourth Proportional to 1,179,808.43, 1,628,260.55 and 721,191.44

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Solution

The fourth proportional to 1,179,808.43, 1,628,260.55 and 721,191.44 is: 995,320.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,808.43 : 1,628,260.55 = 721,191.44 : x
  2. Step 2: Convert to fraction form
    1,179,808.43/1,628,260.55 = 721,191.44/x
  3. Step 3: Cross multiply
    1,179,808.43x = 1,628,260.55 × 721,191.44
  4. Step 4: Simplify right side
    1,179,808.43x = 1,174,287,573,918.85
  5. Step 5: Solve for x
    x = 1,174,287,573,918.85/1,179,808.43
  6. Step 6: Final answer
    x = 995,320.55

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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.