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Finding the Fourth Proportional to 493,428.30, 680,933.10 and 267,073.80

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Solution

The fourth proportional to 493,428.30, 680,933.10 and 267,073.80 is: 368,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,428.30 : 680,933.10 = 267,073.80 : x
  2. Step 2: Convert to fraction form
    493,428.30/680,933.10 = 267,073.80/x
  3. Step 3: Cross multiply
    493,428.30x = 680,933.10 × 267,073.80
  4. Step 4: Simplify right side
    493,428.30x = 181,859,390,562.78
  5. Step 5: Solve for x
    x = 181,859,390,562.78/493,428.30
  6. Step 6: Final answer
    x = 368,562.95

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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.