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Finding the Fourth Proportional to 326,929.52, 490,452.60 and 127,358.48

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Solution

The fourth proportional to 326,929.52, 490,452.60 and 127,358.48 is: 191,060.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,929.52 : 490,452.60 = 127,358.48 : x
  2. Step 2: Convert to fraction form
    326,929.52/490,452.60 = 127,358.48/x
  3. Step 3: Cross multiply
    326,929.52x = 490,452.60 × 127,358.48
  4. Step 4: Simplify right side
    326,929.52x = 62,463,297,648.05
  5. Step 5: Solve for x
    x = 62,463,297,648.05/326,929.52
  6. Step 6: Final answer
    x = 191,060.44

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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.