Home / 519,982.80-779,974.20-270,632.40

Finding the Fourth Proportional to 519,982.80, 779,974.20 and 270,632.40

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Solution

The fourth proportional to 519,982.80, 779,974.20 and 270,632.40 is: 405,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,982.80 : 779,974.20 = 270,632.40 : x
  2. Step 2: Convert to fraction form
    519,982.80/779,974.20 = 270,632.40/x
  3. Step 3: Cross multiply
    519,982.80x = 779,974.20 × 270,632.40
  4. Step 4: Simplify right side
    519,982.80x = 211,086,289,684.08
  5. Step 5: Solve for x
    x = 211,086,289,684.08/519,982.80
  6. Step 6: Final answer
    x = 405,948.60

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Similar ratio
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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.