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Finding the Fourth Proportional to 443,906.81, 665,787.31 and 191,119.24

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Solution

The fourth proportional to 443,906.81, 665,787.31 and 191,119.24 is: 286,647.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,906.81 : 665,787.31 = 191,119.24 : x
  2. Step 2: Convert to fraction form
    443,906.81/665,787.31 = 191,119.24/x
  3. Step 3: Cross multiply
    443,906.81x = 665,787.31 × 191,119.24
  4. Step 4: Simplify right side
    443,906.81x = 127,244,763,733.25
  5. Step 5: Solve for x
    x = 127,244,763,733.25/443,906.81
  6. Step 6: Final answer
    x = 286,647.47

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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.