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Finding the Fourth Proportional to 442,019.89, 663,024.97 and 264,576.43

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Solution

The fourth proportional to 442,019.89, 663,024.97 and 264,576.43 is: 396,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,019.89 : 663,024.97 = 264,576.43 : x
  2. Step 2: Convert to fraction form
    442,019.89/663,024.97 = 264,576.43/x
  3. Step 3: Cross multiply
    442,019.89x = 663,024.97 × 264,576.43
  4. Step 4: Simplify right side
    442,019.89x = 175,420,779,563.46
  5. Step 5: Solve for x
    x = 175,420,779,563.46/442,019.89
  6. Step 6: Final answer
    x = 396,861.73

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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.