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Finding the Fourth Proportional to 541,163.77, 812,025.78 and 392,630.02

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Solution

The fourth proportional to 541,163.77, 812,025.78 and 392,630.02 is: 589,148.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,163.77 : 812,025.78 = 392,630.02 : x
  2. Step 2: Convert to fraction form
    541,163.77/812,025.78 = 392,630.02/x
  3. Step 3: Cross multiply
    541,163.77x = 812,025.78 × 392,630.02
  4. Step 4: Simplify right side
    541,163.77x = 318,825,694,739.49
  5. Step 5: Solve for x
    x = 318,825,694,739.49/541,163.77
  6. Step 6: Final answer
    x = 589,148.27

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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.