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Finding the Fourth Proportional to 339,108.60, 507,788.10 and 269,124.60

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Solution

The fourth proportional to 339,108.60, 507,788.10 and 269,124.60 is: 402,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,108.60 : 507,788.10 = 269,124.60 : x
  2. Step 2: Convert to fraction form
    339,108.60/507,788.10 = 269,124.60/x
  3. Step 3: Cross multiply
    339,108.60x = 507,788.10 × 269,124.60
  4. Step 4: Simplify right side
    339,108.60x = 136,658,269,297.26
  5. Step 5: Solve for x
    x = 136,658,269,297.26/339,108.60
  6. Step 6: Final answer
    x = 402,992.64

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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.