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Finding the Fourth Proportional to 298,639.33, 446,906.50 and 186,372.32

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Solution

The fourth proportional to 298,639.33, 446,906.50 and 186,372.32 is: 278,901.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,639.33 : 446,906.50 = 186,372.32 : x
  2. Step 2: Convert to fraction form
    298,639.33/446,906.50 = 186,372.32/x
  3. Step 3: Cross multiply
    298,639.33x = 446,906.50 × 186,372.32
  4. Step 4: Simplify right side
    298,639.33x = 83,290,998,527.62
  5. Step 5: Solve for x
    x = 83,290,998,527.62/298,639.33
  6. Step 6: Final answer
    x = 278,901.64

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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.