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Finding the Fourth Proportional to 480,586.54, 720,313.92 and 196,099.56

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Solution

The fourth proportional to 480,586.54, 720,313.92 and 196,099.56 is: 293,918.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,586.54 : 720,313.92 = 196,099.56 : x
  2. Step 2: Convert to fraction form
    480,586.54/720,313.92 = 196,099.56/x
  3. Step 3: Cross multiply
    480,586.54x = 720,313.92 × 196,099.56
  4. Step 4: Simplify right side
    480,586.54x = 141,253,242,773.88
  5. Step 5: Solve for x
    x = 141,253,242,773.88/480,586.54
  6. Step 6: Final answer
    x = 293,918.43

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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.