Home / 818,072.57-1,227,669.36-285,593.59

Finding the Fourth Proportional to 818,072.57, 1,227,669.36 and 285,593.59

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Solution

The fourth proportional to 818,072.57, 1,227,669.36 and 285,593.59 is: 428,586.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,072.57 : 1,227,669.36 = 285,593.59 : x
  2. Step 2: Convert to fraction form
    818,072.57/1,227,669.36 = 285,593.59/x
  3. Step 3: Cross multiply
    818,072.57x = 1,227,669.36 × 285,593.59
  4. Step 4: Simplify right side
    818,072.57x = 350,614,496,786.23
  5. Step 5: Solve for x
    x = 350,614,496,786.23/818,072.57
  6. Step 6: Final answer
    x = 428,586.06

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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.