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Finding the Fourth Proportional to 363,044.80, 543,400.80 and 258,068.80

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Solution

The fourth proportional to 363,044.80, 543,400.80 and 258,068.80 is: 386,274.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,044.80 : 543,400.80 = 258,068.80 : x
  2. Step 2: Convert to fraction form
    363,044.80/543,400.80 = 258,068.80/x
  3. Step 3: Cross multiply
    363,044.80x = 543,400.80 × 258,068.80
  4. Step 4: Simplify right side
    363,044.80x = 140,234,792,375.04
  5. Step 5: Solve for x
    x = 140,234,792,375.04/363,044.80
  6. Step 6: Final answer
    x = 386,274.07

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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.