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Finding the Fourth Proportional to 922,187.26, 1,383,401.85 and 361,148.86

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Solution

The fourth proportional to 922,187.26, 1,383,401.85 and 361,148.86 is: 541,770.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,187.26 : 1,383,401.85 = 361,148.86 : x
  2. Step 2: Convert to fraction form
    922,187.26/1,383,401.85 = 361,148.86/x
  3. Step 3: Cross multiply
    922,187.26x = 1,383,401.85 × 361,148.86
  4. Step 4: Simplify right side
    922,187.26x = 499,614,001,049.39
  5. Step 5: Solve for x
    x = 499,614,001,049.39/922,187.26
  6. Step 6: Final answer
    x = 541,770.66

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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.