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Finding the Fourth Proportional to 383,098.80, 573,287.40 and 333,721.20

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Solution

The fourth proportional to 383,098.80, 573,287.40 and 333,721.20 is: 499,396.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,098.80 : 573,287.40 = 333,721.20 : x
  2. Step 2: Convert to fraction form
    383,098.80/573,287.40 = 333,721.20/x
  3. Step 3: Cross multiply
    383,098.80x = 573,287.40 × 333,721.20
  4. Step 4: Simplify right side
    383,098.80x = 191,318,159,072.88
  5. Step 5: Solve for x
    x = 191,318,159,072.88/383,098.80
  6. Step 6: Final answer
    x = 499,396.39

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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.