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Finding the Fourth Proportional to 366,987.80, 550,481.70 and 247,413.58

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Solution

The fourth proportional to 366,987.80, 550,481.70 and 247,413.58 is: 371,120.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,987.80 : 550,481.70 = 247,413.58 : x
  2. Step 2: Convert to fraction form
    366,987.80/550,481.70 = 247,413.58/x
  3. Step 3: Cross multiply
    366,987.80x = 550,481.70 × 247,413.58
  4. Step 4: Simplify right side
    366,987.80x = 136,196,648,121.49
  5. Step 5: Solve for x
    x = 136,196,648,121.49/366,987.80
  6. Step 6: Final answer
    x = 371,120.37

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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.