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Finding the Fourth Proportional to 703,449.56, 970,761.24 and 381,159.41

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Solution

The fourth proportional to 703,449.56, 970,761.24 and 381,159.41 is: 526,000.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,449.56 : 970,761.24 = 381,159.41 : x
  2. Step 2: Convert to fraction form
    703,449.56/970,761.24 = 381,159.41/x
  3. Step 3: Cross multiply
    703,449.56x = 970,761.24 × 381,159.41
  4. Step 4: Simplify right side
    703,449.56x = 370,014,776,635.46
  5. Step 5: Solve for x
    x = 370,014,776,635.46/703,449.56
  6. Step 6: Final answer
    x = 526,000.44

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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.