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Finding the Fourth Proportional to 324,126.25, 447,323.98 and 178,957.97

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Solution

The fourth proportional to 324,126.25, 447,323.98 and 178,957.97 is: 246,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,126.25 : 447,323.98 = 178,957.97 : x
  2. Step 2: Convert to fraction form
    324,126.25/447,323.98 = 178,957.97/x
  3. Step 3: Cross multiply
    324,126.25x = 447,323.98 × 178,957.97
  4. Step 4: Simplify right side
    324,126.25x = 80,052,191,393.12
  5. Step 5: Solve for x
    x = 80,052,191,393.12/324,126.25
  6. Step 6: Final answer
    x = 246,978.43

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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.