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Finding the Fourth Proportional to 681,558.18, 940,511.91 and 375,633.63

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Solution

The fourth proportional to 681,558.18, 940,511.91 and 375,633.63 is: 518,353.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,558.18 : 940,511.91 = 375,633.63 : x
  2. Step 2: Convert to fraction form
    681,558.18/940,511.91 = 375,633.63/x
  3. Step 3: Cross multiply
    681,558.18x = 940,511.91 × 375,633.63
  4. Step 4: Simplify right side
    681,558.18x = 353,287,902,811.53
  5. Step 5: Solve for x
    x = 353,287,902,811.53/681,558.18
  6. Step 6: Final answer
    x = 518,353.26

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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.