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Finding the Fourth Proportional to 768,163.13, 1,059,906.88 and 441,413.03

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Solution

The fourth proportional to 768,163.13, 1,059,906.88 and 441,413.03 is: 609,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,163.13 : 1,059,906.88 = 441,413.03 : x
  2. Step 2: Convert to fraction form
    768,163.13/1,059,906.88 = 441,413.03/x
  3. Step 3: Cross multiply
    768,163.13x = 1,059,906.88 × 441,413.03
  4. Step 4: Simplify right side
    768,163.13x = 467,856,709,750.40
  5. Step 5: Solve for x
    x = 467,856,709,750.40/768,163.13
  6. Step 6: Final answer
    x = 609,059.05

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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.