Home / 618,619.52-927,964.20-192,215.90

Finding the Fourth Proportional to 618,619.52, 927,964.20 and 192,215.90

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Solution

The fourth proportional to 618,619.52, 927,964.20 and 192,215.90 is: 288,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,619.52 : 927,964.20 = 192,215.90 : x
  2. Step 2: Convert to fraction form
    618,619.52/927,964.20 = 192,215.90/x
  3. Step 3: Cross multiply
    618,619.52x = 927,964.20 × 192,215.90
  4. Step 4: Simplify right side
    618,619.52x = 178,369,473,870.78
  5. Step 5: Solve for x
    x = 178,369,473,870.78/618,619.52
  6. Step 6: Final answer
    x = 288,334.70

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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.