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Finding the Fourth Proportional to 325,503.92, 449,171.76 and 198,220.52

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Solution

The fourth proportional to 325,503.92, 449,171.76 and 198,220.52 is: 273,529.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,503.92 : 449,171.76 = 198,220.52 : x
  2. Step 2: Convert to fraction form
    325,503.92/449,171.76 = 198,220.52/x
  3. Step 3: Cross multiply
    325,503.92x = 449,171.76 × 198,220.52
  4. Step 4: Simplify right side
    325,503.92x = 89,035,059,836.52
  5. Step 5: Solve for x
    x = 89,035,059,836.52/325,503.92
  6. Step 6: Final answer
    x = 273,529.92

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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.