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Finding the Fourth Proportional to 400,896.90, 553,107.60 and 273,351.06

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Solution

The fourth proportional to 400,896.90, 553,107.60 and 273,351.06 is: 377,135.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,896.90 : 553,107.60 = 273,351.06 : x
  2. Step 2: Convert to fraction form
    400,896.90/553,107.60 = 273,351.06/x
  3. Step 3: Cross multiply
    400,896.90x = 553,107.60 × 273,351.06
  4. Step 4: Simplify right side
    400,896.90x = 151,192,548,754.06
  5. Step 5: Solve for x
    x = 151,192,548,754.06/400,896.90
  6. Step 6: Final answer
    x = 377,135.74

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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.