Home / 331,640.36-457,665.23-188,408.27

Finding the Fourth Proportional to 331,640.36, 457,665.23 and 188,408.27

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Solution

The fourth proportional to 331,640.36, 457,665.23 and 188,408.27 is: 260,004.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,640.36 : 457,665.23 = 188,408.27 : x
  2. Step 2: Convert to fraction form
    331,640.36/457,665.23 = 188,408.27/x
  3. Step 3: Cross multiply
    331,640.36x = 457,665.23 × 188,408.27
  4. Step 4: Simplify right side
    331,640.36x = 86,227,912,488.20
  5. Step 5: Solve for x
    x = 86,227,912,488.20/331,640.36
  6. Step 6: Final answer
    x = 260,004.28

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1.5x scale

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.