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Finding the Fourth Proportional to 386,007.52, 532,705.44 and 216,243.04

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Solution

The fourth proportional to 386,007.52, 532,705.44 and 216,243.04 is: 298,423.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,007.52 : 532,705.44 = 216,243.04 : x
  2. Step 2: Convert to fraction form
    386,007.52/532,705.44 = 216,243.04/x
  3. Step 3: Cross multiply
    386,007.52x = 532,705.44 × 216,243.04
  4. Step 4: Simplify right side
    386,007.52x = 115,193,843,770.14
  5. Step 5: Solve for x
    x = 115,193,843,770.14/386,007.52
  6. Step 6: Final answer
    x = 298,423.83

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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.