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Finding the Fourth Proportional to 665,072.70, 998,002.41 and 244,643.58

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Solution

The fourth proportional to 665,072.70, 998,002.41 and 244,643.58 is: 367,110.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,072.70 : 998,002.41 = 244,643.58 : x
  2. Step 2: Convert to fraction form
    665,072.70/998,002.41 = 244,643.58/x
  3. Step 3: Cross multiply
    665,072.70x = 998,002.41 × 244,643.58
  4. Step 4: Simplify right side
    665,072.70x = 244,154,882,431.03
  5. Step 5: Solve for x
    x = 244,154,882,431.03/665,072.70
  6. Step 6: Final answer
    x = 367,110.07

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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.