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Finding the Fourth Proportional to 351,296, 484,788.48 and 192,320

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Solution

The fourth proportional to 351,296, 484,788.48 and 192,320 is: 265,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,296 : 484,788.48 = 192,320 : x
  2. Step 2: Convert to fraction form
    351,296/484,788.48 = 192,320/x
  3. Step 3: Cross multiply
    351,296x = 484,788.48 × 192,320
  4. Step 4: Simplify right side
    351,296x = 93,234,520,473.60
  5. Step 5: Solve for x
    x = 93,234,520,473.60/351,296
  6. Step 6: Final answer
    x = 265,401.60

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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.