Home / 481,629.18-664,624.52-263,838.78

Finding the Fourth Proportional to 481,629.18, 664,624.52 and 263,838.78

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Solution

The fourth proportional to 481,629.18, 664,624.52 and 263,838.78 is: 364,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,629.18 : 664,624.52 = 263,838.78 : x
  2. Step 2: Convert to fraction form
    481,629.18/664,624.52 = 263,838.78/x
  3. Step 3: Cross multiply
    481,629.18x = 664,624.52 × 263,838.78
  4. Step 4: Simplify right side
    481,629.18x = 175,353,722,514.89
  5. Step 5: Solve for x
    x = 175,353,722,514.89/481,629.18
  6. Step 6: Final answer
    x = 364,084.51

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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.