Home / 445,885.44-668,672.64-196,431.36

Finding the Fourth Proportional to 445,885.44, 668,672.64 and 196,431.36

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Solution

The fourth proportional to 445,885.44, 668,672.64 and 196,431.36 is: 294,578.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,885.44 : 668,672.64 = 196,431.36 : x
  2. Step 2: Convert to fraction form
    445,885.44/668,672.64 = 196,431.36/x
  3. Step 3: Cross multiply
    445,885.44x = 668,672.64 × 196,431.36
  4. Step 4: Simplify right side
    445,885.44x = 131,348,276,069.99
  5. Step 5: Solve for x
    x = 131,348,276,069.99/445,885.44
  6. Step 6: Final answer
    x = 294,578.53

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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.