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Finding the Fourth Proportional to 443,940.20, 665,910.30 and 194,622.20

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Solution

The fourth proportional to 443,940.20, 665,910.30 and 194,622.20 is: 291,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,940.20 : 665,910.30 = 194,622.20 : x
  2. Step 2: Convert to fraction form
    443,940.20/665,910.30 = 194,622.20/x
  3. Step 3: Cross multiply
    443,940.20x = 665,910.30 × 194,622.20
  4. Step 4: Simplify right side
    443,940.20x = 129,600,927,588.66
  5. Step 5: Solve for x
    x = 129,600,927,588.66/443,940.20
  6. Step 6: Final answer
    x = 291,933.30

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Similar ratio
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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.