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Finding the Fourth Proportional to 367,360.80, 551,365.20 and 217,413.60

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Solution

The fourth proportional to 367,360.80, 551,365.20 and 217,413.60 is: 326,312.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,360.80 : 551,365.20 = 217,413.60 : x
  2. Step 2: Convert to fraction form
    367,360.80/551,365.20 = 217,413.60/x
  3. Step 3: Cross multiply
    367,360.80x = 551,365.20 × 217,413.60
  4. Step 4: Simplify right side
    367,360.80x = 119,874,293,046.72
  5. Step 5: Solve for x
    x = 119,874,293,046.72/367,360.80
  6. Step 6: Final answer
    x = 326,312.15

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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.