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Finding the Fourth Proportional to 551,403.20, 826,910.40 and 252,027.20

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Solution

The fourth proportional to 551,403.20, 826,910.40 and 252,027.20 is: 377,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,403.20 : 826,910.40 = 252,027.20 : x
  2. Step 2: Convert to fraction form
    551,403.20/826,910.40 = 252,027.20/x
  3. Step 3: Cross multiply
    551,403.20x = 826,910.40 × 252,027.20
  4. Step 4: Simplify right side
    551,403.20x = 208,403,912,762.88
  5. Step 5: Solve for x
    x = 208,403,912,762.88/551,403.20
  6. Step 6: Final answer
    x = 377,951.95

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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.