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Finding the Fourth Proportional to 494,906.36, 682,972.65 and 268,551.86

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Solution

The fourth proportional to 494,906.36, 682,972.65 and 268,551.86 is: 370,602.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,906.36 : 682,972.65 = 268,551.86 : x
  2. Step 2: Convert to fraction form
    494,906.36/682,972.65 = 268,551.86/x
  3. Step 3: Cross multiply
    494,906.36x = 682,972.65 × 268,551.86
  4. Step 4: Simplify right side
    494,906.36x = 183,413,575,486.63
  5. Step 5: Solve for x
    x = 183,413,575,486.63/494,906.36
  6. Step 6: Final answer
    x = 370,602.58

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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.