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Finding the Fourth Proportional to 505,861.01, 698,413.61 and 324,651.05

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Solution

The fourth proportional to 505,861.01, 698,413.61 and 324,651.05 is: 448,227.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,861.01 : 698,413.61 = 324,651.05 : x
  2. Step 2: Convert to fraction form
    505,861.01/698,413.61 = 324,651.05/x
  3. Step 3: Cross multiply
    505,861.01x = 698,413.61 × 324,651.05
  4. Step 4: Simplify right side
    505,861.01x = 226,740,711,820.79
  5. Step 5: Solve for x
    x = 226,740,711,820.79/505,861.01
  6. Step 6: Final answer
    x = 448,227.29

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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.