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Finding the Fourth Proportional to 383,608.80, 574,927.20 and 146,635.20

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Solution

The fourth proportional to 383,608.80, 574,927.20 and 146,635.20 is: 219,767.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,608.80 : 574,927.20 = 146,635.20 : x
  2. Step 2: Convert to fraction form
    383,608.80/574,927.20 = 146,635.20/x
  3. Step 3: Cross multiply
    383,608.80x = 574,927.20 × 146,635.20
  4. Step 4: Simplify right side
    383,608.80x = 84,304,564,957.44
  5. Step 5: Solve for x
    x = 84,304,564,957.44/383,608.80
  6. Step 6: Final answer
    x = 219,767.03

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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.