Home / 679,251.44-938,189.09-495,198.54

Finding the Fourth Proportional to 679,251.44, 938,189.09 and 495,198.54

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Solution

The fourth proportional to 679,251.44, 938,189.09 and 495,198.54 is: 683,973.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,251.44 : 938,189.09 = 495,198.54 : x
  2. Step 2: Convert to fraction form
    679,251.44/938,189.09 = 495,198.54/x
  3. Step 3: Cross multiply
    679,251.44x = 938,189.09 × 495,198.54
  4. Step 4: Simplify right side
    679,251.44x = 464,589,867,611.93
  5. Step 5: Solve for x
    x = 464,589,867,611.93/679,251.44
  6. Step 6: Final answer
    x = 683,973.33

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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.