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Finding the Fourth Proportional to 619,504.38, 855,073.17 and 423,350.37

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Solution

The fourth proportional to 619,504.38, 855,073.17 and 423,350.37 is: 584,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,504.38 : 855,073.17 = 423,350.37 : x
  2. Step 2: Convert to fraction form
    619,504.38/855,073.17 = 423,350.37/x
  3. Step 3: Cross multiply
    619,504.38x = 855,073.17 × 423,350.37
  4. Step 4: Simplify right side
    619,504.38x = 361,995,542,896.57
  5. Step 5: Solve for x
    x = 361,995,542,896.57/619,504.38
  6. Step 6: Final answer
    x = 584,330.89

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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.