Home / 519,321.20-778,544.40-270,003.20

Finding the Fourth Proportional to 519,321.20, 778,544.40 and 270,003.20

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Solution

The fourth proportional to 519,321.20, 778,544.40 and 270,003.20 is: 404,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,321.20 : 778,544.40 = 270,003.20 : x
  2. Step 2: Convert to fraction form
    519,321.20/778,544.40 = 270,003.20/x
  3. Step 3: Cross multiply
    519,321.20x = 778,544.40 × 270,003.20
  4. Step 4: Simplify right side
    519,321.20x = 210,209,479,342.08
  5. Step 5: Solve for x
    x = 210,209,479,342.08/519,321.20
  6. Step 6: Final answer
    x = 404,777.39

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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.