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Finding the Fourth Proportional to 324,057.54, 447,221.61 and 180,845.22

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Solution

The fourth proportional to 324,057.54, 447,221.61 and 180,845.22 is: 249,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,057.54 : 447,221.61 = 180,845.22 : x
  2. Step 2: Convert to fraction form
    324,057.54/447,221.61 = 180,845.22/x
  3. Step 3: Cross multiply
    324,057.54x = 447,221.61 × 180,845.22
  4. Step 4: Simplify right side
    324,057.54x = 80,877,890,449.20
  5. Step 5: Solve for x
    x = 80,877,890,449.20/324,057.54
  6. Step 6: Final answer
    x = 249,578.80

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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.