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Finding the Fourth Proportional to 392,625.08, 541,684.54 and 256,738.52

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Solution

The fourth proportional to 392,625.08, 541,684.54 and 256,738.52 is: 354,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,625.08 : 541,684.54 = 256,738.52 : x
  2. Step 2: Convert to fraction form
    392,625.08/541,684.54 = 256,738.52/x
  3. Step 3: Cross multiply
    392,625.08x = 541,684.54 × 256,738.52
  4. Step 4: Simplify right side
    392,625.08x = 139,071,287,106.48
  5. Step 5: Solve for x
    x = 139,071,287,106.48/392,625.08
  6. Step 6: Final answer
    x = 354,208.87

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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.