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Finding the Fourth Proportional to 493,383.65, 680,869.42 and 267,029.15

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Solution

The fourth proportional to 493,383.65, 680,869.42 and 267,029.15 is: 368,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,383.65 : 680,869.42 = 267,029.15 : x
  2. Step 2: Convert to fraction form
    493,383.65/680,869.42 = 267,029.15/x
  3. Step 3: Cross multiply
    493,383.65x = 680,869.42 × 267,029.15
  4. Step 4: Simplify right side
    493,383.65x = 181,811,978,411.67
  5. Step 5: Solve for x
    x = 181,811,978,411.67/493,383.65
  6. Step 6: Final answer
    x = 368,500.21

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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.