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Finding the Fourth Proportional to 493,966.40, 681,674.34 and 267,611.90

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Solution

The fourth proportional to 493,966.40, 681,674.34 and 267,611.90 is: 369,304.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,966.40 : 681,674.34 = 267,611.90 : x
  2. Step 2: Convert to fraction form
    493,966.40/681,674.34 = 267,611.90/x
  3. Step 3: Cross multiply
    493,966.40x = 681,674.34 × 267,611.90
  4. Step 4: Simplify right side
    493,966.40x = 182,424,165,308.65
  5. Step 5: Solve for x
    x = 182,424,165,308.65/493,966.40
  6. Step 6: Final answer
    x = 369,304.81

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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.