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Finding the Fourth Proportional to 662,864.32, 994,335.92 and 207,540.84

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Solution

The fourth proportional to 662,864.32, 994,335.92 and 207,540.84 is: 311,323.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,864.32 : 994,335.92 = 207,540.84 : x
  2. Step 2: Convert to fraction form
    662,864.32/994,335.92 = 207,540.84/x
  3. Step 3: Cross multiply
    662,864.32x = 994,335.92 × 207,540.84
  4. Step 4: Simplify right side
    662,864.32x = 206,365,312,078.97
  5. Step 5: Solve for x
    x = 206,365,312,078.97/662,864.32
  6. Step 6: Final answer
    x = 311,323.61

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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.