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Finding the Fourth Proportional to 351,635.34, 485,257 and 190,491.03

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Solution

The fourth proportional to 351,635.34, 485,257 and 190,491.03 is: 262,877.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,635.34 : 485,257 = 190,491.03 : x
  2. Step 2: Convert to fraction form
    351,635.34/485,257 = 190,491.03/x
  3. Step 3: Cross multiply
    351,635.34x = 485,257 × 190,491.03
  4. Step 4: Simplify right side
    351,635.34x = 92,437,105,744.71
  5. Step 5: Solve for x
    x = 92,437,105,744.71/351,635.34
  6. Step 6: Final answer
    x = 262,877.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.