Home / 782,192.75-1,080,053.78-628,739.19

Finding the Fourth Proportional to 782,192.75, 1,080,053.78 and 628,739.19

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Solution

The fourth proportional to 782,192.75, 1,080,053.78 and 628,739.19 is: 868,164.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,192.75 : 1,080,053.78 = 628,739.19 : x
  2. Step 2: Convert to fraction form
    782,192.75/1,080,053.78 = 628,739.19/x
  3. Step 3: Cross multiply
    782,192.75x = 1,080,053.78 × 628,739.19
  4. Step 4: Simplify right side
    782,192.75x = 679,072,135,649.94
  5. Step 5: Solve for x
    x = 679,072,135,649.94/782,192.75
  6. Step 6: Final answer
    x = 868,164.71

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1.5x scale

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.