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Finding the Fourth Proportional to 443,982.70, 665,974.05 and 194,664.70

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Solution

The fourth proportional to 443,982.70, 665,974.05 and 194,664.70 is: 291,997.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,982.70 : 665,974.05 = 194,664.70 : x
  2. Step 2: Convert to fraction form
    443,982.70/665,974.05 = 194,664.70/x
  3. Step 3: Cross multiply
    443,982.70x = 665,974.05 × 194,664.70
  4. Step 4: Simplify right side
    443,982.70x = 129,641,638,651.04
  5. Step 5: Solve for x
    x = 129,641,638,651.04/443,982.70
  6. Step 6: Final answer
    x = 291,997.05

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Similar ratio
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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.