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Finding the Fourth Proportional to 322,148.40, 483,222.60 and 270,049.20

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Solution

The fourth proportional to 322,148.40, 483,222.60 and 270,049.20 is: 405,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,148.40 : 483,222.60 = 270,049.20 : x
  2. Step 2: Convert to fraction form
    322,148.40/483,222.60 = 270,049.20/x
  3. Step 3: Cross multiply
    322,148.40x = 483,222.60 × 270,049.20
  4. Step 4: Simplify right side
    322,148.40x = 130,493,876,551.92
  5. Step 5: Solve for x
    x = 130,493,876,551.92/322,148.40
  6. Step 6: Final answer
    x = 405,073.80

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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.