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Finding the Fourth Proportional to 436,791.60, 653,632.20 and 303,044.40

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Solution

The fourth proportional to 436,791.60, 653,632.20 and 303,044.40 is: 453,487.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,791.60 : 653,632.20 = 303,044.40 : x
  2. Step 2: Convert to fraction form
    436,791.60/653,632.20 = 303,044.40/x
  3. Step 3: Cross multiply
    436,791.60x = 653,632.20 × 303,044.40
  4. Step 4: Simplify right side
    436,791.60x = 198,079,577,869.68
  5. Step 5: Solve for x
    x = 198,079,577,869.68/436,791.60
  6. Step 6: Final answer
    x = 453,487.61

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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.