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Finding the Fourth Proportional to 287,893.92, 396,992.16 and 247,743.84

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Solution

The fourth proportional to 287,893.92, 396,992.16 and 247,743.84 is: 341,627.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,893.92 : 396,992.16 = 247,743.84 : x
  2. Step 2: Convert to fraction form
    287,893.92/396,992.16 = 247,743.84/x
  3. Step 3: Cross multiply
    287,893.92x = 396,992.16 × 247,743.84
  4. Step 4: Simplify right side
    287,893.92x = 98,352,362,168.29
  5. Step 5: Solve for x
    x = 98,352,362,168.29/287,893.92
  6. Step 6: Final answer
    x = 341,627.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.