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Finding the Fourth Proportional to 384,252.27, 530,380.74 and 223,179.72

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Solution

The fourth proportional to 384,252.27, 530,380.74 and 223,179.72 is: 308,053.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,252.27 : 530,380.74 = 223,179.72 : x
  2. Step 2: Convert to fraction form
    384,252.27/530,380.74 = 223,179.72/x
  3. Step 3: Cross multiply
    384,252.27x = 530,380.74 × 223,179.72
  4. Step 4: Simplify right side
    384,252.27x = 118,370,225,046.59
  5. Step 5: Solve for x
    x = 118,370,225,046.59/384,252.27
  6. Step 6: Final answer
    x = 308,053.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.