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Finding the Fourth Proportional to 443,446.15, 665,169.23 and 162,926.95

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Solution

The fourth proportional to 443,446.15, 665,169.23 and 162,926.95 is: 244,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,446.15 : 665,169.23 = 162,926.95 : x
  2. Step 2: Convert to fraction form
    443,446.15/665,169.23 = 162,926.95/x
  3. Step 3: Cross multiply
    443,446.15x = 665,169.23 × 162,926.95
  4. Step 4: Simplify right side
    443,446.15x = 108,373,993,063.11
  5. Step 5: Solve for x
    x = 108,373,993,063.11/443,446.15
  6. Step 6: Final answer
    x = 244,390.43

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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.