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Finding the Fourth Proportional to 494,781.94, 682,800.40 and 268,427.44

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Solution

The fourth proportional to 494,781.94, 682,800.40 and 268,427.44 is: 370,430.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,781.94 : 682,800.40 = 268,427.44 : x
  2. Step 2: Convert to fraction form
    494,781.94/682,800.40 = 268,427.44/x
  3. Step 3: Cross multiply
    494,781.94x = 682,800.40 × 268,427.44
  4. Step 4: Simplify right side
    494,781.94x = 183,282,362,060.84
  5. Step 5: Solve for x
    x = 183,282,362,060.84/494,781.94
  6. Step 6: Final answer
    x = 370,430.58

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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.