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Finding the Fourth Proportional to 277,897.99, 383,481.43 and 155,400.48

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Solution

The fourth proportional to 277,897.99, 383,481.43 and 155,400.48 is: 214,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,897.99 : 383,481.43 = 155,400.48 : x
  2. Step 2: Convert to fraction form
    277,897.99/383,481.43 = 155,400.48/x
  3. Step 3: Cross multiply
    277,897.99x = 383,481.43 × 155,400.48
  4. Step 4: Simplify right side
    277,897.99x = 59,593,198,293.09
  5. Step 5: Solve for x
    x = 59,593,198,293.09/277,897.99
  6. Step 6: Final answer
    x = 214,442.71

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1.5x scale

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.