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Finding the Fourth Proportional to 518,093.58, 776,615.49 and 251,629.50

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Solution

The fourth proportional to 518,093.58, 776,615.49 and 251,629.50 is: 377,189.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,093.58 : 776,615.49 = 251,629.50 : x
  2. Step 2: Convert to fraction form
    518,093.58/776,615.49 = 251,629.50/x
  3. Step 3: Cross multiply
    518,093.58x = 776,615.49 × 251,629.50
  4. Step 4: Simplify right side
    518,093.58x = 195,419,367,440.96
  5. Step 5: Solve for x
    x = 195,419,367,440.96/518,093.58
  6. Step 6: Final answer
    x = 377,189.32

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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.