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Finding the Fourth Proportional to 281,999.92, 422,168.82 and 247,007.92

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Solution

The fourth proportional to 281,999.92, 422,168.82 and 247,007.92 is: 369,783.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,999.92 : 422,168.82 = 247,007.92 : x
  2. Step 2: Convert to fraction form
    281,999.92/422,168.82 = 247,007.92/x
  3. Step 3: Cross multiply
    281,999.92x = 422,168.82 × 247,007.92
  4. Step 4: Simplify right side
    281,999.92x = 104,279,042,117.05
  5. Step 5: Solve for x
    x = 104,279,042,117.05/281,999.92
  6. Step 6: Final answer
    x = 369,783.94

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1.5x scale

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.