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Finding the Fourth Proportional to 443,593.82, 611,757.59 and 290,576.18

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Solution

The fourth proportional to 443,593.82, 611,757.59 and 290,576.18 is: 400,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,593.82 : 611,757.59 = 290,576.18 : x
  2. Step 2: Convert to fraction form
    443,593.82/611,757.59 = 290,576.18/x
  3. Step 3: Cross multiply
    443,593.82x = 611,757.59 × 290,576.18
  4. Step 4: Simplify right side
    443,593.82x = 177,762,183,664.72
  5. Step 5: Solve for x
    x = 177,762,183,664.72/443,593.82
  6. Step 6: Final answer
    x = 400,731.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.