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Finding the Fourth Proportional to 414,930.60, 620,962.30 and 248,837.80

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Solution

The fourth proportional to 414,930.60, 620,962.30 and 248,837.80 is: 372,396.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,930.60 : 620,962.30 = 248,837.80 : x
  2. Step 2: Convert to fraction form
    414,930.60/620,962.30 = 248,837.80/x
  3. Step 3: Cross multiply
    414,930.60x = 620,962.30 × 248,837.80
  4. Step 4: Simplify right side
    414,930.60x = 154,518,892,614.94
  5. Step 5: Solve for x
    x = 154,518,892,614.94/414,930.60
  6. Step 6: Final answer
    x = 372,396.96

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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.