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Finding the Fourth Proportional to 608,918.49, 840,396.47 and 350,745.27

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Solution

The fourth proportional to 608,918.49, 840,396.47 and 350,745.27 is: 484,079.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,918.49 : 840,396.47 = 350,745.27 : x
  2. Step 2: Convert to fraction form
    608,918.49/840,396.47 = 350,745.27/x
  3. Step 3: Cross multiply
    608,918.49x = 840,396.47 × 350,745.27
  4. Step 4: Simplify right side
    608,918.49x = 294,765,085,023.47
  5. Step 5: Solve for x
    x = 294,765,085,023.47/608,918.49
  6. Step 6: Final answer
    x = 484,079.71

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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.