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Finding the Fourth Proportional to 621,906.51, 932,856.71 and 242,865.75

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Solution

The fourth proportional to 621,906.51, 932,856.71 and 242,865.75 is: 364,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,906.51 : 932,856.71 = 242,865.75 : x
  2. Step 2: Convert to fraction form
    621,906.51/932,856.71 = 242,865.75/x
  3. Step 3: Cross multiply
    621,906.51x = 932,856.71 × 242,865.75
  4. Step 4: Simplify right side
    621,906.51x = 226,558,940,412.18
  5. Step 5: Solve for x
    x = 226,558,940,412.18/621,906.51
  6. Step 6: Final answer
    x = 364,297.42

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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.