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Finding the Fourth Proportional to 479,413.80, 718,622.55 and 194,982.30

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Solution

The fourth proportional to 479,413.80, 718,622.55 and 194,982.30 is: 292,270.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,413.80 : 718,622.55 = 194,982.30 : x
  2. Step 2: Convert to fraction form
    479,413.80/718,622.55 = 194,982.30/x
  3. Step 3: Cross multiply
    479,413.80x = 718,622.55 × 194,982.30
  4. Step 4: Simplify right side
    479,413.80x = 140,118,677,630.87
  5. Step 5: Solve for x
    x = 140,118,677,630.87/479,413.80
  6. Step 6: Final answer
    x = 292,270.85

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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.