Home / 2,400,142.12-3,312,195.78-1,312,414.39

Finding the Fourth Proportional to 2,400,142.12, 3,312,195.78 and 1,312,414.39

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Solution

The fourth proportional to 2,400,142.12, 3,312,195.78 and 1,312,414.39 is: 1,811,131.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400,142.12 : 3,312,195.78 = 1,312,414.39 : x
  2. Step 2: Convert to fraction form
    2,400,142.12/3,312,195.78 = 1,312,414.39/x
  3. Step 3: Cross multiply
    2,400,142.12x = 3,312,195.78 × 1,312,414.39
  4. Step 4: Simplify right side
    2,400,142.12x = 4,346,973,404,169.27
  5. Step 5: Solve for x
    x = 4,346,973,404,169.27/2,400,142.12
  6. Step 6: Final answer
    x = 1,811,131.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.