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Finding the Fourth Proportional to 703,451.92, 970,764.50 and 381,161.76

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Solution

The fourth proportional to 703,451.92, 970,764.50 and 381,161.76 is: 526,003.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,451.92 : 970,764.50 = 381,161.76 : x
  2. Step 2: Convert to fraction form
    703,451.92/970,764.50 = 381,161.76/x
  3. Step 3: Cross multiply
    703,451.92x = 970,764.50 × 381,161.76
  4. Step 4: Simplify right side
    703,451.92x = 370,018,305,365.52
  5. Step 5: Solve for x
    x = 370,018,305,365.52/703,451.92
  6. Step 6: Final answer
    x = 526,003.69

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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.