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Finding the Fourth Proportional to 339,196.60, 507,920.10 and 269,212.60

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Solution

The fourth proportional to 339,196.60, 507,920.10 and 269,212.60 is: 403,124.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,196.60 : 507,920.10 = 269,212.60 : x
  2. Step 2: Convert to fraction form
    339,196.60/507,920.10 = 269,212.60/x
  3. Step 3: Cross multiply
    339,196.60x = 507,920.10 × 269,212.60
  4. Step 4: Simplify right side
    339,196.60x = 136,738,490,713.26
  5. Step 5: Solve for x
    x = 136,738,490,713.26/339,196.60
  6. Step 6: Final answer
    x = 403,124.59

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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.