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Finding the Fourth Proportional to 468,942.60, 703,413.90 and 448,465.80

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Solution

The fourth proportional to 468,942.60, 703,413.90 and 448,465.80 is: 672,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,942.60 : 703,413.90 = 448,465.80 : x
  2. Step 2: Convert to fraction form
    468,942.60/703,413.90 = 448,465.80/x
  3. Step 3: Cross multiply
    468,942.60x = 703,413.90 × 448,465.80
  4. Step 4: Simplify right side
    468,942.60x = 315,457,077,394.62
  5. Step 5: Solve for x
    x = 315,457,077,394.62/468,942.60
  6. Step 6: Final answer
    x = 672,698.70

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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.