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Finding the Fourth Proportional to 493,511.18, 681,047.60 and 267,156.68

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Solution

The fourth proportional to 493,511.18, 681,047.60 and 267,156.68 is: 368,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,511.18 : 681,047.60 = 267,156.68 : x
  2. Step 2: Convert to fraction form
    493,511.18/681,047.60 = 267,156.68/x
  3. Step 3: Cross multiply
    493,511.18x = 681,047.60 × 267,156.68
  4. Step 4: Simplify right side
    493,511.18x = 181,946,415,737.97
  5. Step 5: Solve for x
    x = 181,946,415,737.97/493,511.18
  6. Step 6: Final answer
    x = 368,677.39

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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.