Home / 828,891.80-1,242,608.70-561,786.20

Finding the Fourth Proportional to 828,891.80, 1,242,608.70 and 561,786.20

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Solution

The fourth proportional to 828,891.80, 1,242,608.70 and 561,786.20 is: 842,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,891.80 : 1,242,608.70 = 561,786.20 : x
  2. Step 2: Convert to fraction form
    828,891.80/1,242,608.70 = 561,786.20/x
  3. Step 3: Cross multiply
    828,891.80x = 1,242,608.70 × 561,786.20
  4. Step 4: Simplify right side
    828,891.80x = 698,080,419,659.94
  5. Step 5: Solve for x
    x = 698,080,419,659.94/828,891.80
  6. Step 6: Final answer
    x = 842,185.22

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Double scale
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1.5x scale

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.