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Finding the Fourth Proportional to 999,168.10, 1,498,424.10 and 367,999.90

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Solution

The fourth proportional to 999,168.10, 1,498,424.10 and 367,999.90 is: 551,879.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,168.10 : 1,498,424.10 = 367,999.90 : x
  2. Step 2: Convert to fraction form
    999,168.10/1,498,424.10 = 367,999.90/x
  3. Step 3: Cross multiply
    999,168.10x = 1,498,424.10 × 367,999.90
  4. Step 4: Simplify right side
    999,168.10x = 551,419,918,957.59
  5. Step 5: Solve for x
    x = 551,419,918,957.59/999,168.10
  6. Step 6: Final answer
    x = 551,879.03

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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.