Home / 509,304.11-763,956.31-189,414.18

Finding the Fourth Proportional to 509,304.11, 763,956.31 and 189,414.18

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Solution

The fourth proportional to 509,304.11, 763,956.31 and 189,414.18 is: 284,121.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,304.11 : 763,956.31 = 189,414.18 : x
  2. Step 2: Convert to fraction form
    509,304.11/763,956.31 = 189,414.18/x
  3. Step 3: Cross multiply
    509,304.11x = 763,956.31 × 189,414.18
  4. Step 4: Simplify right side
    509,304.11x = 144,704,157,067.41
  5. Step 5: Solve for x
    x = 144,704,157,067.41/509,304.11
  6. Step 6: Final answer
    x = 284,121.32

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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.