Home / 726,692.40-1,002,821.99-404,399.48

Finding the Fourth Proportional to 726,692.40, 1,002,821.99 and 404,399.48

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Solution

The fourth proportional to 726,692.40, 1,002,821.99 and 404,399.48 is: 558,063.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,692.40 : 1,002,821.99 = 404,399.48 : x
  2. Step 2: Convert to fraction form
    726,692.40/1,002,821.99 = 404,399.48/x
  3. Step 3: Cross multiply
    726,692.40x = 1,002,821.99 × 404,399.48
  4. Step 4: Simplify right side
    726,692.40x = 405,540,684,252.46
  5. Step 5: Solve for x
    x = 405,540,684,252.46/726,692.40
  6. Step 6: Final answer
    x = 558,063.75

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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.