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Finding the Fourth Proportional to 551,791.86, 827,355.15 and 359,808.90

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Solution

The fourth proportional to 551,791.86, 827,355.15 and 359,808.90 is: 539,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,791.86 : 827,355.15 = 359,808.90 : x
  2. Step 2: Convert to fraction form
    551,791.86/827,355.15 = 359,808.90/x
  3. Step 3: Cross multiply
    551,791.86x = 827,355.15 × 359,808.90
  4. Step 4: Simplify right side
    551,791.86x = 297,689,746,430.84
  5. Step 5: Solve for x
    x = 297,689,746,430.84/551,791.86
  6. Step 6: Final answer
    x = 539,496.44

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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.