Home / 666,663.72-1,000,093.92-193,287.60

Finding the Fourth Proportional to 666,663.72, 1,000,093.92 and 193,287.60

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Solution

The fourth proportional to 666,663.72, 1,000,093.92 and 193,287.60 is: 289,959.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,663.72 : 1,000,093.92 = 193,287.60 : x
  2. Step 2: Convert to fraction form
    666,663.72/1,000,093.92 = 193,287.60/x
  3. Step 3: Cross multiply
    666,663.72x = 1,000,093.92 × 193,287.60
  4. Step 4: Simplify right side
    666,663.72x = 193,305,753,571.39
  5. Step 5: Solve for x
    x = 193,305,753,571.39/666,663.72
  6. Step 6: Final answer
    x = 289,959.91

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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.