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Finding the Fourth Proportional to 439,267, 606,192.12 and 238,063

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Solution

The fourth proportional to 439,267, 606,192.12 and 238,063 is: 328,528.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,267 : 606,192.12 = 238,063 : x
  2. Step 2: Convert to fraction form
    439,267/606,192.12 = 238,063/x
  3. Step 3: Cross multiply
    439,267x = 606,192.12 × 238,063
  4. Step 4: Simplify right side
    439,267x = 144,311,914,663.56
  5. Step 5: Solve for x
    x = 144,311,914,663.56/439,267
  6. Step 6: Final answer
    x = 328,528.92

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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.