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Finding the Fourth Proportional to 328,052.72, 490,963.32 and 201,626.48

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Solution

The fourth proportional to 328,052.72, 490,963.32 and 201,626.48 is: 301,753.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,052.72 : 490,963.32 = 201,626.48 : x
  2. Step 2: Convert to fraction form
    328,052.72/490,963.32 = 201,626.48/x
  3. Step 3: Cross multiply
    328,052.72x = 490,963.32 × 201,626.48
  4. Step 4: Simplify right side
    328,052.72x = 98,991,206,020.71
  5. Step 5: Solve for x
    x = 98,991,206,020.71/328,052.72
  6. Step 6: Final answer
    x = 301,753.96

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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.