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Finding the Fourth Proportional to 326,318.70, 450,778.59 and 251,824.62

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Solution

The fourth proportional to 326,318.70, 450,778.59 and 251,824.62 is: 347,872.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,318.70 : 450,778.59 = 251,824.62 : x
  2. Step 2: Convert to fraction form
    326,318.70/450,778.59 = 251,824.62/x
  3. Step 3: Cross multiply
    326,318.70x = 450,778.59 × 251,824.62
  4. Step 4: Simplify right side
    326,318.70x = 113,517,147,130.89
  5. Step 5: Solve for x
    x = 113,517,147,130.89/326,318.70
  6. Step 6: Final answer
    x = 347,872.03

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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.