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Finding the Fourth Proportional to 400,125.87, 599,522.44 and 281,548.09

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Solution

The fourth proportional to 400,125.87, 599,522.44 and 281,548.09 is: 421,853.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,125.87 : 599,522.44 = 281,548.09 : x
  2. Step 2: Convert to fraction form
    400,125.87/599,522.44 = 281,548.09/x
  3. Step 3: Cross multiply
    400,125.87x = 599,522.44 × 281,548.09
  4. Step 4: Simplify right side
    400,125.87x = 168,794,398,689.08
  5. Step 5: Solve for x
    x = 168,794,398,689.08/400,125.87
  6. Step 6: Final answer
    x = 421,853.25

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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.