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Finding the Fourth Proportional to 443,216.09, 664,194.89 and 341,630.21

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Solution

The fourth proportional to 443,216.09, 664,194.89 and 341,630.21 is: 511,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,216.09 : 664,194.89 = 341,630.21 : x
  2. Step 2: Convert to fraction form
    443,216.09/664,194.89 = 341,630.21/x
  3. Step 3: Cross multiply
    443,216.09x = 664,194.89 × 341,630.21
  4. Step 4: Simplify right side
    443,216.09x = 226,909,034,722.50
  5. Step 5: Solve for x
    x = 226,909,034,722.50/443,216.09
  6. Step 6: Final answer
    x = 511,960.29

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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.