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Finding the Fourth Proportional to 620,456.66, 930,738.60 and 171,177.53

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Solution

The fourth proportional to 620,456.66, 930,738.60 and 171,177.53 is: 256,781.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,456.66 : 930,738.60 = 171,177.53 : x
  2. Step 2: Convert to fraction form
    620,456.66/930,738.60 = 171,177.53/x
  3. Step 3: Cross multiply
    620,456.66x = 930,738.60 × 171,177.53
  4. Step 4: Simplify right side
    620,456.66x = 159,321,534,623.66
  5. Step 5: Solve for x
    x = 159,321,534,623.66/620,456.66
  6. Step 6: Final answer
    x = 256,781.09

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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.