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Finding the Fourth Proportional to 443,651.80, 665,895.30 and 233,440.60

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Solution

The fourth proportional to 443,651.80, 665,895.30 and 233,440.60 is: 350,380.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,651.80 : 665,895.30 = 233,440.60 : x
  2. Step 2: Convert to fraction form
    443,651.80/665,895.30 = 233,440.60/x
  3. Step 3: Cross multiply
    443,651.80x = 665,895.30 × 233,440.60
  4. Step 4: Simplify right side
    443,651.80x = 155,446,998,369.18
  5. Step 5: Solve for x
    x = 155,446,998,369.18/443,651.80
  6. Step 6: Final answer
    x = 350,380.63

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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.