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Finding the Fourth Proportional to 455,226.40, 682,839.60 and 455,226.40

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Solution

The fourth proportional to 455,226.40, 682,839.60 and 455,226.40 is: 682,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,226.40 : 682,839.60 = 455,226.40 : x
  2. Step 2: Convert to fraction form
    455,226.40/682,839.60 = 455,226.40/x
  3. Step 3: Cross multiply
    455,226.40x = 682,839.60 × 455,226.40
  4. Step 4: Simplify right side
    455,226.40x = 310,846,612,885.44
  5. Step 5: Solve for x
    x = 310,846,612,885.44/455,226.40
  6. Step 6: Final answer
    x = 682,839.60

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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.