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Finding the Fourth Proportional to 2,459.92, 3,690.08 and 1,226.08

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Solution

The fourth proportional to 2,459.92, 3,690.08 and 1,226.08 is: 1,839.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.92 : 3,690.08 = 1,226.08 : x
  2. Step 2: Convert to fraction form
    2,459.92/3,690.08 = 1,226.08/x
  3. Step 3: Cross multiply
    2,459.92x = 3,690.08 × 1,226.08
  4. Step 4: Simplify right side
    2,459.92x = 4,524,333.29
  5. Step 5: Solve for x
    x = 4,524,333.29/2,459.92
  6. Step 6: Final answer
    x = 1,839.22

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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.