Home / 2,579,081.40-3,868,622.10-1,981,193.40

Finding the Fourth Proportional to 2,579,081.40, 3,868,622.10 and 1,981,193.40

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Solution

The fourth proportional to 2,579,081.40, 3,868,622.10 and 1,981,193.40 is: 2,971,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579,081.40 : 3,868,622.10 = 1,981,193.40 : x
  2. Step 2: Convert to fraction form
    2,579,081.40/3,868,622.10 = 1,981,193.40/x
  3. Step 3: Cross multiply
    2,579,081.40x = 3,868,622.10 × 1,981,193.40
  4. Step 4: Simplify right side
    2,579,081.40x = 7,664,488,571,614.14
  5. Step 5: Solve for x
    x = 7,664,488,571,614.14/2,579,081.40
  6. Step 6: Final answer
    x = 2,971,790.10

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Double scale
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Similar ratio
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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.