Home / 818,200.09-1,227,493.31-257,234.59

Finding the Fourth Proportional to 818,200.09, 1,227,493.31 and 257,234.59

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Solution

The fourth proportional to 818,200.09, 1,227,493.31 and 257,234.59 is: 385,912.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,200.09 : 1,227,493.31 = 257,234.59 : x
  2. Step 2: Convert to fraction form
    818,200.09/1,227,493.31 = 257,234.59/x
  3. Step 3: Cross multiply
    818,200.09x = 1,227,493.31 × 257,234.59
  4. Step 4: Simplify right side
    818,200.09x = 315,753,733,839.55
  5. Step 5: Solve for x
    x = 315,753,733,839.55/818,200.09
  6. Step 6: Final answer
    x = 385,912.61

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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.