Home / 262,447.20-393,670.80-129,586.95

Finding the Fourth Proportional to 262,447.20, 393,670.80 and 129,586.95

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Solution

The fourth proportional to 262,447.20, 393,670.80 and 129,586.95 is: 194,380.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,447.20 : 393,670.80 = 129,586.95 : x
  2. Step 2: Convert to fraction form
    262,447.20/393,670.80 = 129,586.95/x
  3. Step 3: Cross multiply
    262,447.20x = 393,670.80 × 129,586.95
  4. Step 4: Simplify right side
    262,447.20x = 51,014,598,276.06
  5. Step 5: Solve for x
    x = 51,014,598,276.06/262,447.20
  6. Step 6: Final answer
    x = 194,380.43

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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.