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Finding the Fourth Proportional to 491,247.51, 677,916.77 and 273,452.73

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Solution

The fourth proportional to 491,247.51, 677,916.77 and 273,452.73 is: 377,362.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,247.51 : 677,916.77 = 273,452.73 : x
  2. Step 2: Convert to fraction form
    491,247.51/677,916.77 = 273,452.73/x
  3. Step 3: Cross multiply
    491,247.51x = 677,916.77 × 273,452.73
  4. Step 4: Simplify right side
    491,247.51x = 185,378,186,712.44
  5. Step 5: Solve for x
    x = 185,378,186,712.44/491,247.51
  6. Step 6: Final answer
    x = 377,362.09

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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.