Home / 886,399.20-1,328,043.60-727,768.80

Finding the Fourth Proportional to 886,399.20, 1,328,043.60 and 727,768.80

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Solution

The fourth proportional to 886,399.20, 1,328,043.60 and 727,768.80 is: 1,090,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,399.20 : 1,328,043.60 = 727,768.80 : x
  2. Step 2: Convert to fraction form
    886,399.20/1,328,043.60 = 727,768.80/x
  3. Step 3: Cross multiply
    886,399.20x = 1,328,043.60 × 727,768.80
  4. Step 4: Simplify right side
    886,399.20x = 966,508,697,119.68
  5. Step 5: Solve for x
    x = 966,508,697,119.68/886,399.20
  6. Step 6: Final answer
    x = 1,090,376.32

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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.