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Finding the Fourth Proportional to 392,762.88, 541,840.32 and 265,392

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Solution

The fourth proportional to 392,762.88, 541,840.32 and 265,392 is: 366,124.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,762.88 : 541,840.32 = 265,392 : x
  2. Step 2: Convert to fraction form
    392,762.88/541,840.32 = 265,392/x
  3. Step 3: Cross multiply
    392,762.88x = 541,840.32 × 265,392
  4. Step 4: Simplify right side
    392,762.88x = 143,800,086,205.44
  5. Step 5: Solve for x
    x = 143,800,086,205.44/392,762.88
  6. Step 6: Final answer
    x = 366,124.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.