Home / 1,100,769.57-1,519,064.73-642,199.41

Finding the Fourth Proportional to 1,100,769.57, 1,519,064.73 and 642,199.41

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Solution

The fourth proportional to 1,100,769.57, 1,519,064.73 and 642,199.41 is: 886,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,769.57 : 1,519,064.73 = 642,199.41 : x
  2. Step 2: Convert to fraction form
    1,100,769.57/1,519,064.73 = 642,199.41/x
  3. Step 3: Cross multiply
    1,100,769.57x = 1,519,064.73 × 642,199.41
  4. Step 4: Simplify right side
    1,100,769.57x = 975,542,473,357.81
  5. Step 5: Solve for x
    x = 975,542,473,357.81/1,100,769.57
  6. Step 6: Final answer
    x = 886,236.77

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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.