Home / 854,144.20-1,281,216.30-539,993.80

Finding the Fourth Proportional to 854,144.20, 1,281,216.30 and 539,993.80

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Solution

The fourth proportional to 854,144.20, 1,281,216.30 and 539,993.80 is: 809,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,144.20 : 1,281,216.30 = 539,993.80 : x
  2. Step 2: Convert to fraction form
    854,144.20/1,281,216.30 = 539,993.80/x
  3. Step 3: Cross multiply
    854,144.20x = 1,281,216.30 × 539,993.80
  4. Step 4: Simplify right side
    854,144.20x = 691,848,858,458.94
  5. Step 5: Solve for x
    x = 691,848,858,458.94/854,144.20
  6. Step 6: Final answer
    x = 809,990.70

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Double scale
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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.