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Finding the Fourth Proportional to 447,086.97, 616,971.47 and 245,882.97

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Solution

The fourth proportional to 447,086.97, 616,971.47 and 245,882.97 is: 339,313.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,086.97 : 616,971.47 = 245,882.97 : x
  2. Step 2: Convert to fraction form
    447,086.97/616,971.47 = 245,882.97/x
  3. Step 3: Cross multiply
    447,086.97x = 616,971.47 × 245,882.97
  4. Step 4: Simplify right side
    447,086.97x = 151,702,776,219.45
  5. Step 5: Solve for x
    x = 151,702,776,219.45/447,086.97
  6. Step 6: Final answer
    x = 339,313.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.