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Finding the Fourth Proportional to 489,134.40, 733,701.60 and 223,413.90

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Solution

The fourth proportional to 489,134.40, 733,701.60 and 223,413.90 is: 335,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,134.40 : 733,701.60 = 223,413.90 : x
  2. Step 2: Convert to fraction form
    489,134.40/733,701.60 = 223,413.90/x
  3. Step 3: Cross multiply
    489,134.40x = 733,701.60 × 223,413.90
  4. Step 4: Simplify right side
    489,134.40x = 163,919,135,892.24
  5. Step 5: Solve for x
    x = 163,919,135,892.24/489,134.40
  6. Step 6: Final answer
    x = 335,120.85

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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.