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Finding the Fourth Proportional to 620,593.96, 930,872.34 and 171,342.25

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Solution

The fourth proportional to 620,593.96, 930,872.34 and 171,342.25 is: 257,008.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,593.96 : 930,872.34 = 171,342.25 : x
  2. Step 2: Convert to fraction form
    620,593.96/930,872.34 = 171,342.25/x
  3. Step 3: Cross multiply
    620,593.96x = 930,872.34 × 171,342.25
  4. Step 4: Simplify right side
    620,593.96x = 159,497,761,198.37
  5. Step 5: Solve for x
    x = 159,497,761,198.37/620,593.96
  6. Step 6: Final answer
    x = 257,008.24

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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.