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Finding the Fourth Proportional to 381,906.50, 572,785.93 and 362,939.74

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Solution

The fourth proportional to 381,906.50, 572,785.93 and 362,939.74 is: 544,339.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,906.50 : 572,785.93 = 362,939.74 : x
  2. Step 2: Convert to fraction form
    381,906.50/572,785.93 = 362,939.74/x
  3. Step 3: Cross multiply
    381,906.50x = 572,785.93 × 362,939.74
  4. Step 4: Simplify right side
    381,906.50x = 207,886,775,531.57
  5. Step 5: Solve for x
    x = 207,886,775,531.57/381,906.50
  6. Step 6: Final answer
    x = 544,339.46

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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.