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Finding the Fourth Proportional to 443,606.88, 665,446.56 and 177,221.64

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Solution

The fourth proportional to 443,606.88, 665,446.56 and 177,221.64 is: 265,846.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,606.88 : 665,446.56 = 177,221.64 : x
  2. Step 2: Convert to fraction form
    443,606.88/665,446.56 = 177,221.64/x
  3. Step 3: Cross multiply
    443,606.88x = 665,446.56 × 177,221.64
  4. Step 4: Simplify right side
    443,606.88x = 117,931,530,695.56
  5. Step 5: Solve for x
    x = 117,931,530,695.56/443,606.88
  6. Step 6: Final answer
    x = 265,846.94

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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.