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Finding the Fourth Proportional to 495,793.78, 743,690.92 and 327,274.72

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Solution

The fourth proportional to 495,793.78, 743,690.92 and 327,274.72 is: 490,912.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,793.78 : 743,690.92 = 327,274.72 : x
  2. Step 2: Convert to fraction form
    495,793.78/743,690.92 = 327,274.72/x
  3. Step 3: Cross multiply
    495,793.78x = 743,690.92 × 327,274.72
  4. Step 4: Simplify right side
    495,793.78x = 243,391,237,609.54
  5. Step 5: Solve for x
    x = 243,391,237,609.54/495,793.78
  6. Step 6: Final answer
    x = 490,912.25

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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.