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Finding the Fourth Proportional to 463,974.21, 640,273.77 and 270,369.60

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Solution

The fourth proportional to 463,974.21, 640,273.77 and 270,369.60 is: 373,103.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,974.21 : 640,273.77 = 270,369.60 : x
  2. Step 2: Convert to fraction form
    463,974.21/640,273.77 = 270,369.60/x
  3. Step 3: Cross multiply
    463,974.21x = 640,273.77 × 270,369.60
  4. Step 4: Simplify right side
    463,974.21x = 173,110,563,085.39
  5. Step 5: Solve for x
    x = 173,110,563,085.39/463,974.21
  6. Step 6: Final answer
    x = 373,103.85

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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.