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Finding the Fourth Proportional to 866,007.11, 1,298,687.60 and 297,226.82

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Solution

The fourth proportional to 866,007.11, 1,298,687.60 and 297,226.82 is: 445,729.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,007.11 : 1,298,687.60 = 297,226.82 : x
  2. Step 2: Convert to fraction form
    866,007.11/1,298,687.60 = 297,226.82/x
  3. Step 3: Cross multiply
    866,007.11x = 1,298,687.60 × 297,226.82
  4. Step 4: Simplify right side
    866,007.11x = 386,004,789,511.22
  5. Step 5: Solve for x
    x = 386,004,789,511.22/866,007.11
  6. Step 6: Final answer
    x = 445,729.35

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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.