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Finding the Fourth Proportional to 375,789.50, 518,861.68 and 241,886.78

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Solution

The fourth proportional to 375,789.50, 518,861.68 and 241,886.78 is: 333,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,789.50 : 518,861.68 = 241,886.78 : x
  2. Step 2: Convert to fraction form
    375,789.50/518,861.68 = 241,886.78/x
  3. Step 3: Cross multiply
    375,789.50x = 518,861.68 × 241,886.78
  4. Step 4: Simplify right side
    375,789.50x = 125,505,781,040.59
  5. Step 5: Solve for x
    x = 125,505,781,040.59/375,789.50
  6. Step 6: Final answer
    x = 333,978.95

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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.