Home / 1,289,873.80-1,934,854.39-343,245.43

Finding the Fourth Proportional to 1,289,873.80, 1,934,854.39 and 343,245.43

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Solution

The fourth proportional to 1,289,873.80, 1,934,854.39 and 343,245.43 is: 514,879.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,873.80 : 1,934,854.39 = 343,245.43 : x
  2. Step 2: Convert to fraction form
    1,289,873.80/1,934,854.39 = 343,245.43/x
  3. Step 3: Cross multiply
    1,289,873.80x = 1,934,854.39 × 343,245.43
  4. Step 4: Simplify right side
    1,289,873.80x = 664,129,929,930.56
  5. Step 5: Solve for x
    x = 664,129,929,930.56/1,289,873.80
  6. Step 6: Final answer
    x = 514,879.77

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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.