Home / 543,974.20-815,961.30-540,037.60

Finding the Fourth Proportional to 543,974.20, 815,961.30 and 540,037.60

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Solution

The fourth proportional to 543,974.20, 815,961.30 and 540,037.60 is: 810,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,974.20 : 815,961.30 = 540,037.60 : x
  2. Step 2: Convert to fraction form
    543,974.20/815,961.30 = 540,037.60/x
  3. Step 3: Cross multiply
    543,974.20x = 815,961.30 × 540,037.60
  4. Step 4: Simplify right side
    543,974.20x = 440,649,782,144.88
  5. Step 5: Solve for x
    x = 440,649,782,144.88/543,974.20
  6. Step 6: Final answer
    x = 810,056.40

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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.