Home / 923,144.31-1,274,003.37-515,325.78

Finding the Fourth Proportional to 923,144.31, 1,274,003.37 and 515,325.78

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Solution

The fourth proportional to 923,144.31, 1,274,003.37 and 515,325.78 is: 711,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,144.31 : 1,274,003.37 = 515,325.78 : x
  2. Step 2: Convert to fraction form
    923,144.31/1,274,003.37 = 515,325.78/x
  3. Step 3: Cross multiply
    923,144.31x = 1,274,003.37 × 515,325.78
  4. Step 4: Simplify right side
    923,144.31x = 656,526,780,367.88
  5. Step 5: Solve for x
    x = 656,526,780,367.88/923,144.31
  6. Step 6: Final answer
    x = 711,185.43

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Double scale
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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.