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Finding the Fourth Proportional to 383,640.57, 529,256.03 and 365,852.97

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Solution

The fourth proportional to 383,640.57, 529,256.03 and 365,852.97 is: 504,716.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,640.57 : 529,256.03 = 365,852.97 : x
  2. Step 2: Convert to fraction form
    383,640.57/529,256.03 = 365,852.97/x
  3. Step 3: Cross multiply
    383,640.57x = 529,256.03 × 365,852.97
  4. Step 4: Simplify right side
    383,640.57x = 193,629,888,636.64
  5. Step 5: Solve for x
    x = 193,629,888,636.64/383,640.57
  6. Step 6: Final answer
    x = 504,716.92

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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.