Home / 509,789.34-764,634.30-154,806.44

Finding the Fourth Proportional to 509,789.34, 764,634.30 and 154,806.44

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Solution

The fourth proportional to 509,789.34, 764,634.30 and 154,806.44 is: 232,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,789.34 : 764,634.30 = 154,806.44 : x
  2. Step 2: Convert to fraction form
    509,789.34/764,634.30 = 154,806.44/x
  3. Step 3: Cross multiply
    509,789.34x = 764,634.30 × 154,806.44
  4. Step 4: Simplify right side
    509,789.34x = 118,370,310,061.72
  5. Step 5: Solve for x
    x = 118,370,310,061.72/509,789.34
  6. Step 6: Final answer
    x = 232,194.56

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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.