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Finding the Fourth Proportional to 541,418.16, 812,403.90 and 361,626.12

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Solution

The fourth proportional to 541,418.16, 812,403.90 and 361,626.12 is: 542,623.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,418.16 : 812,403.90 = 361,626.12 : x
  2. Step 2: Convert to fraction form
    541,418.16/812,403.90 = 361,626.12/x
  3. Step 3: Cross multiply
    541,418.16x = 812,403.90 × 361,626.12
  4. Step 4: Simplify right side
    541,418.16x = 293,786,470,229.87
  5. Step 5: Solve for x
    x = 293,786,470,229.87/541,418.16
  6. Step 6: Final answer
    x = 542,623.97

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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.