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Finding the Fourth Proportional to 322,628.80, 483,367.20 and 156,049.60

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Solution

The fourth proportional to 322,628.80, 483,367.20 and 156,049.60 is: 233,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,628.80 : 483,367.20 = 156,049.60 : x
  2. Step 2: Convert to fraction form
    322,628.80/483,367.20 = 156,049.60/x
  3. Step 3: Cross multiply
    322,628.80x = 483,367.20 × 156,049.60
  4. Step 4: Simplify right side
    322,628.80x = 75,429,258,213.12
  5. Step 5: Solve for x
    x = 75,429,258,213.12/322,628.80
  6. Step 6: Final answer
    x = 233,795.80

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1.5x scale

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.