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Finding the Fourth Proportional to 494,652.30, 741,978.45 and 120,675.30

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Solution

The fourth proportional to 494,652.30, 741,978.45 and 120,675.30 is: 181,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,652.30 : 741,978.45 = 120,675.30 : x
  2. Step 2: Convert to fraction form
    494,652.30/741,978.45 = 120,675.30/x
  3. Step 3: Cross multiply
    494,652.30x = 741,978.45 × 120,675.30
  4. Step 4: Simplify right side
    494,652.30x = 89,538,472,047.29
  5. Step 5: Solve for x
    x = 89,538,472,047.29/494,652.30
  6. Step 6: Final answer
    x = 181,012.95

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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.