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Finding the Fourth Proportional to 451,029.57, 622,404.56 and 257,447.27

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Solution

The fourth proportional to 451,029.57, 622,404.56 and 257,447.27 is: 355,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,029.57 : 622,404.56 = 257,447.27 : x
  2. Step 2: Convert to fraction form
    451,029.57/622,404.56 = 257,447.27/x
  3. Step 3: Cross multiply
    451,029.57x = 622,404.56 × 257,447.27
  4. Step 4: Simplify right side
    451,029.57x = 160,236,350,408.29
  5. Step 5: Solve for x
    x = 160,236,350,408.29/451,029.57
  6. Step 6: Final answer
    x = 355,267.95

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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.