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Finding the Fourth Proportional to 444,408, 666,612 and 111,984

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Solution

The fourth proportional to 444,408, 666,612 and 111,984 is: 167,976

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,408 : 666,612 = 111,984 : x
  2. Step 2: Convert to fraction form
    444,408/666,612 = 111,984/x
  3. Step 3: Cross multiply
    444,408x = 666,612 × 111,984
  4. Step 4: Simplify right side
    444,408x = 74,649,878,208
  5. Step 5: Solve for x
    x = 74,649,878,208/444,408
  6. Step 6: Final answer
    x = 167,976

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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.