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Finding the Fourth Proportional to 277,879.60, 383,474.21 and 150,555.09

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Solution

The fourth proportional to 277,879.60, 383,474.21 and 150,555.09 is: 207,766.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,879.60 : 383,474.21 = 150,555.09 : x
  2. Step 2: Convert to fraction form
    277,879.60/383,474.21 = 150,555.09/x
  3. Step 3: Cross multiply
    277,879.60x = 383,474.21 × 150,555.09
  4. Step 4: Simplify right side
    277,879.60x = 57,733,994,199.23
  5. Step 5: Solve for x
    x = 57,733,994,199.23/277,879.60
  6. Step 6: Final answer
    x = 207,766.22

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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.