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Finding the Fourth Proportional to 443,552.40, 664,344.45 and 343,169.10

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Solution

The fourth proportional to 443,552.40, 664,344.45 and 343,169.10 is: 513,992.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,552.40 : 664,344.45 = 343,169.10 : x
  2. Step 2: Convert to fraction form
    443,552.40/664,344.45 = 343,169.10/x
  3. Step 3: Cross multiply
    443,552.40x = 664,344.45 × 343,169.10
  4. Step 4: Simplify right side
    443,552.40x = 227,982,486,996.50
  5. Step 5: Solve for x
    x = 227,982,486,996.50/443,552.40
  6. Step 6: Final answer
    x = 513,992.23

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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.