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Finding the Fourth Proportional to 587,371.22, 810,390.24 and 329,212.39

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Solution

The fourth proportional to 587,371.22, 810,390.24 and 329,212.39 is: 454,211.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,371.22 : 810,390.24 = 329,212.39 : x
  2. Step 2: Convert to fraction form
    587,371.22/810,390.24 = 329,212.39/x
  3. Step 3: Cross multiply
    587,371.22x = 810,390.24 × 329,212.39
  4. Step 4: Simplify right side
    587,371.22x = 266,790,507,743.07
  5. Step 5: Solve for x
    x = 266,790,507,743.07/587,371.22
  6. Step 6: Final answer
    x = 454,211.07

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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.