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Finding the Fourth Proportional to 484,266.60, 726,399.90 and 422,058.60

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Solution

The fourth proportional to 484,266.60, 726,399.90 and 422,058.60 is: 633,087.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,266.60 : 726,399.90 = 422,058.60 : x
  2. Step 2: Convert to fraction form
    484,266.60/726,399.90 = 422,058.60/x
  3. Step 3: Cross multiply
    484,266.60x = 726,399.90 × 422,058.60
  4. Step 4: Simplify right side
    484,266.60x = 306,583,324,834.14
  5. Step 5: Solve for x
    x = 306,583,324,834.14/484,266.60
  6. Step 6: Final answer
    x = 633,087.90

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Similar ratio
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1.5x scale

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.