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Finding the Fourth Proportional to 310,676.31, 465,806.87 and 250,778.48

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Solution

The fourth proportional to 310,676.31, 465,806.87 and 250,778.48 is: 376,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,676.31 : 465,806.87 = 250,778.48 : x
  2. Step 2: Convert to fraction form
    310,676.31/465,806.87 = 250,778.48/x
  3. Step 3: Cross multiply
    310,676.31x = 465,806.87 × 250,778.48
  4. Step 4: Simplify right side
    310,676.31x = 116,814,338,832.16
  5. Step 5: Solve for x
    x = 116,814,338,832.16/310,676.31
  6. Step 6: Final answer
    x = 376,000.15

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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.