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Finding the Fourth Proportional to 367,891.22, 507,828.61 and 214,979.11

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Solution

The fourth proportional to 367,891.22, 507,828.61 and 214,979.11 is: 296,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,891.22 : 507,828.61 = 214,979.11 : x
  2. Step 2: Convert to fraction form
    367,891.22/507,828.61 = 214,979.11/x
  3. Step 3: Cross multiply
    367,891.22x = 507,828.61 × 214,979.11
  4. Step 4: Simplify right side
    367,891.22x = 109,172,542,610.34
  5. Step 5: Solve for x
    x = 109,172,542,610.34/367,891.22
  6. Step 6: Final answer
    x = 296,752.24

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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.