Home / 3,091,719.20-4,637,578.80-2,129,568.80

Finding the Fourth Proportional to 3,091,719.20, 4,637,578.80 and 2,129,568.80

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Solution

The fourth proportional to 3,091,719.20, 4,637,578.80 and 2,129,568.80 is: 3,194,353.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091,719.20 : 4,637,578.80 = 2,129,568.80 : x
  2. Step 2: Convert to fraction form
    3,091,719.20/4,637,578.80 = 2,129,568.80/x
  3. Step 3: Cross multiply
    3,091,719.20x = 4,637,578.80 × 2,129,568.80
  4. Step 4: Simplify right side
    3,091,719.20x = 9,876,043,120,021.44
  5. Step 5: Solve for x
    x = 9,876,043,120,021.44/3,091,719.20
  6. Step 6: Final answer
    x = 3,194,353.20

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Double scale
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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.