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Finding the Fourth Proportional to 482,033.98, 722,033.78 and 386,748.28

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Solution

The fourth proportional to 482,033.98, 722,033.78 and 386,748.28 is: 579,306.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,033.98 : 722,033.78 = 386,748.28 : x
  2. Step 2: Convert to fraction form
    482,033.98/722,033.78 = 386,748.28/x
  3. Step 3: Cross multiply
    482,033.98x = 722,033.78 × 386,748.28
  4. Step 4: Simplify right side
    482,033.98x = 279,245,318,778.07
  5. Step 5: Solve for x
    x = 279,245,318,778.07/482,033.98
  6. Step 6: Final answer
    x = 579,306.30

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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.