Home / 1,298,519.19-1,793,105.49-809,323.60

Finding the Fourth Proportional to 1,298,519.19, 1,793,105.49 and 809,323.60

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Solution

The fourth proportional to 1,298,519.19, 1,793,105.49 and 809,323.60 is: 1,117,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,519.19 : 1,793,105.49 = 809,323.60 : x
  2. Step 2: Convert to fraction form
    1,298,519.19/1,793,105.49 = 809,323.60/x
  3. Step 3: Cross multiply
    1,298,519.19x = 1,793,105.49 × 809,323.60
  4. Step 4: Simplify right side
    1,298,519.19x = 1,451,202,590,346.56
  5. Step 5: Solve for x
    x = 1,451,202,590,346.56/1,298,519.19
  6. Step 6: Final answer
    x = 1,117,582.71

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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.