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Finding the Fourth Proportional to 323,771.15, 485,656.73 and 252,912.35

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Solution

The fourth proportional to 323,771.15, 485,656.73 and 252,912.35 is: 379,368.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,771.15 : 485,656.73 = 252,912.35 : x
  2. Step 2: Convert to fraction form
    323,771.15/485,656.73 = 252,912.35/x
  3. Step 3: Cross multiply
    323,771.15x = 485,656.73 × 252,912.35
  4. Step 4: Simplify right side
    323,771.15x = 122,828,584,877.62
  5. Step 5: Solve for x
    x = 122,828,584,877.62/323,771.15
  6. Step 6: Final answer
    x = 379,368.53

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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.