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Finding the Fourth Proportional to 493,510.18, 681,046.22 and 267,155.68

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Solution

The fourth proportional to 493,510.18, 681,046.22 and 267,155.68 is: 368,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,510.18 : 681,046.22 = 267,155.68 : x
  2. Step 2: Convert to fraction form
    493,510.18/681,046.22 = 267,155.68/x
  3. Step 3: Cross multiply
    493,510.18x = 681,046.22 × 267,155.68
  4. Step 4: Simplify right side
    493,510.18x = 181,945,366,015.53
  5. Step 5: Solve for x
    x = 181,945,366,015.53/493,510.18
  6. Step 6: Final answer
    x = 368,676.01

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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.