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Finding the Fourth Proportional to 332,478.20, 498,015.30 and 220,212.20

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Solution

The fourth proportional to 332,478.20, 498,015.30 and 220,212.20 is: 329,853.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,478.20 : 498,015.30 = 220,212.20 : x
  2. Step 2: Convert to fraction form
    332,478.20/498,015.30 = 220,212.20/x
  3. Step 3: Cross multiply
    332,478.20x = 498,015.30 × 220,212.20
  4. Step 4: Simplify right side
    332,478.20x = 109,669,044,846.66
  5. Step 5: Solve for x
    x = 109,669,044,846.66/332,478.20
  6. Step 6: Final answer
    x = 329,853.34

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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.