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Finding the Fourth Proportional to 332,438.20, 497,955.30 and 220,172.20

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Solution

The fourth proportional to 332,438.20, 497,955.30 and 220,172.20 is: 329,793.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,438.20 : 497,955.30 = 220,172.20 : x
  2. Step 2: Convert to fraction form
    332,438.20/497,955.30 = 220,172.20/x
  3. Step 3: Cross multiply
    332,438.20x = 497,955.30 × 220,172.20
  4. Step 4: Simplify right side
    332,438.20x = 109,635,913,902.66
  5. Step 5: Solve for x
    x = 109,635,913,902.66/332,438.20
  6. Step 6: Final answer
    x = 329,793.37

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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.