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Finding the Fourth Proportional to 488,942.40, 733,413.60 and 472,612.80

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Solution

The fourth proportional to 488,942.40, 733,413.60 and 472,612.80 is: 708,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,942.40 : 733,413.60 = 472,612.80 : x
  2. Step 2: Convert to fraction form
    488,942.40/733,413.60 = 472,612.80/x
  3. Step 3: Cross multiply
    488,942.40x = 733,413.60 × 472,612.80
  4. Step 4: Simplify right side
    488,942.40x = 346,620,655,054.08
  5. Step 5: Solve for x
    x = 346,620,655,054.08/488,942.40
  6. Step 6: Final answer
    x = 708,919.20

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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.