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Finding the Fourth Proportional to 548,217.72, 821,049.21 and 533,083.68

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Solution

The fourth proportional to 548,217.72, 821,049.21 and 533,083.68 is: 798,383.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,217.72 : 821,049.21 = 533,083.68 : x
  2. Step 2: Convert to fraction form
    548,217.72/821,049.21 = 533,083.68/x
  3. Step 3: Cross multiply
    548,217.72x = 821,049.21 × 533,083.68
  4. Step 4: Simplify right side
    548,217.72x = 437,687,934,327.89
  5. Step 5: Solve for x
    x = 437,687,934,327.89/548,217.72
  6. Step 6: Final answer
    x = 798,383.41

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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.