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Finding the Fourth Proportional to 367,820.91, 551,727.84 and 217,953.32

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Solution

The fourth proportional to 367,820.91, 551,727.84 and 217,953.32 is: 326,927.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,820.91 : 551,727.84 = 217,953.32 : x
  2. Step 2: Convert to fraction form
    367,820.91/551,727.84 = 217,953.32/x
  3. Step 3: Cross multiply
    367,820.91x = 551,727.84 × 217,953.32
  4. Step 4: Simplify right side
    367,820.91x = 120,250,914,464.43
  5. Step 5: Solve for x
    x = 120,250,914,464.43/367,820.91
  6. Step 6: Final answer
    x = 326,927.89

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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.