Home / 481,257.21-721,612.45-196,614.50

Finding the Fourth Proportional to 481,257.21, 721,612.45 and 196,614.50

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Solution

The fourth proportional to 481,257.21, 721,612.45 and 196,614.50 is: 294,810.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,257.21 : 721,612.45 = 196,614.50 : x
  2. Step 2: Convert to fraction form
    481,257.21/721,612.45 = 196,614.50/x
  3. Step 3: Cross multiply
    481,257.21x = 721,612.45 × 196,614.50
  4. Step 4: Simplify right side
    481,257.21x = 141,879,472,363.02
  5. Step 5: Solve for x
    x = 141,879,472,363.02/481,257.21
  6. Step 6: Final answer
    x = 294,810.07

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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.