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Finding the Fourth Proportional to 439,647.54, 606,714.67 and 238,443.54

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Solution

The fourth proportional to 439,647.54, 606,714.67 and 238,443.54 is: 329,052.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,647.54 : 606,714.67 = 238,443.54 : x
  2. Step 2: Convert to fraction form
    439,647.54/606,714.67 = 238,443.54/x
  3. Step 3: Cross multiply
    439,647.54x = 606,714.67 × 238,443.54
  4. Step 4: Simplify right side
    439,647.54x = 144,667,193,684.73
  5. Step 5: Solve for x
    x = 144,667,193,684.73/439,647.54
  6. Step 6: Final answer
    x = 329,052.66

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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.