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Finding the Fourth Proportional to 445,297.29, 668,114.05 and 267,928.85

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Solution

The fourth proportional to 445,297.29, 668,114.05 and 267,928.85 is: 401,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,297.29 : 668,114.05 = 267,928.85 : x
  2. Step 2: Convert to fraction form
    445,297.29/668,114.05 = 267,928.85/x
  3. Step 3: Cross multiply
    445,297.29x = 668,114.05 × 267,928.85
  4. Step 4: Simplify right side
    445,297.29x = 179,007,029,085.34
  5. Step 5: Solve for x
    x = 179,007,029,085.34/445,297.29
  6. Step 6: Final answer
    x = 401,994.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.