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Finding the Fourth Proportional to 443,313.26, 665,298.04 and 329,720.48

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Solution

The fourth proportional to 443,313.26, 665,298.04 and 329,720.48 is: 494,824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,313.26 : 665,298.04 = 329,720.48 : x
  2. Step 2: Convert to fraction form
    443,313.26/665,298.04 = 329,720.48/x
  3. Step 3: Cross multiply
    443,313.26x = 665,298.04 × 329,720.48
  4. Step 4: Simplify right side
    443,313.26x = 219,362,389,091.86
  5. Step 5: Solve for x
    x = 219,362,389,091.86/443,313.26
  6. Step 6: Final answer
    x = 494,824.79

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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.