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Finding the Fourth Proportional to 279,033.40, 419,586.90 and 233,414.20

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Solution

The fourth proportional to 279,033.40, 419,586.90 and 233,414.20 is: 350,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,033.40 : 419,586.90 = 233,414.20 : x
  2. Step 2: Convert to fraction form
    279,033.40/419,586.90 = 233,414.20/x
  3. Step 3: Cross multiply
    279,033.40x = 419,586.90 × 233,414.20
  4. Step 4: Simplify right side
    279,033.40x = 97,937,540,593.98
  5. Step 5: Solve for x
    x = 97,937,540,593.98/279,033.40
  6. Step 6: Final answer
    x = 350,988.59

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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.