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Finding the Fourth Proportional to 324,631.76, 447,909.96 and 190,469.84

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Solution

The fourth proportional to 324,631.76, 447,909.96 and 190,469.84 is: 262,800.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,631.76 : 447,909.96 = 190,469.84 : x
  2. Step 2: Convert to fraction form
    324,631.76/447,909.96 = 190,469.84/x
  3. Step 3: Cross multiply
    324,631.76x = 447,909.96 × 190,469.84
  4. Step 4: Simplify right side
    324,631.76x = 85,313,338,415.61
  5. Step 5: Solve for x
    x = 85,313,338,415.61/324,631.76
  6. Step 6: Final answer
    x = 262,800.34

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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.