Home / 945,891.60-1,418,797.68-440,278.80

Finding the Fourth Proportional to 945,891.60, 1,418,797.68 and 440,278.80

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Solution

The fourth proportional to 945,891.60, 1,418,797.68 and 440,278.80 is: 660,399.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,891.60 : 1,418,797.68 = 440,278.80 : x
  2. Step 2: Convert to fraction form
    945,891.60/1,418,797.68 = 440,278.80/x
  3. Step 3: Cross multiply
    945,891.60x = 1,418,797.68 × 440,278.80
  4. Step 4: Simplify right side
    945,891.60x = 624,666,539,993.18
  5. Step 5: Solve for x
    x = 624,666,539,993.18/945,891.60
  6. Step 6: Final answer
    x = 660,399.71

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Double scale
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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.