Home / 819,556.82-1,228,634.02-314,480.24

Finding the Fourth Proportional to 819,556.82, 1,228,634.02 and 314,480.24

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Solution

The fourth proportional to 819,556.82, 1,228,634.02 and 314,480.24 is: 471,451.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,556.82 : 1,228,634.02 = 314,480.24 : x
  2. Step 2: Convert to fraction form
    819,556.82/1,228,634.02 = 314,480.24/x
  3. Step 3: Cross multiply
    819,556.82x = 1,228,634.02 × 314,480.24
  4. Step 4: Simplify right side
    819,556.82x = 386,381,120,339.07
  5. Step 5: Solve for x
    x = 386,381,120,339.07/819,556.82
  6. Step 6: Final answer
    x = 471,451.29

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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.