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Finding the Fourth Proportional to 447,095.28, 617,003.16 and 245,896.56

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Solution

The fourth proportional to 447,095.28, 617,003.16 and 245,896.56 is: 339,343.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,095.28 : 617,003.16 = 245,896.56 : x
  2. Step 2: Convert to fraction form
    447,095.28/617,003.16 = 245,896.56/x
  3. Step 3: Cross multiply
    447,095.28x = 617,003.16 × 245,896.56
  4. Step 4: Simplify right side
    447,095.28x = 151,718,954,553.13
  5. Step 5: Solve for x
    x = 151,718,954,553.13/447,095.28
  6. Step 6: Final answer
    x = 339,343.67

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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.