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Finding the Fourth Proportional to 451,243.60, 622,637.22 and 257,562.88

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Solution

The fourth proportional to 451,243.60, 622,637.22 and 257,562.88 is: 355,391.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,243.60 : 622,637.22 = 257,562.88 : x
  2. Step 2: Convert to fraction form
    451,243.60/622,637.22 = 257,562.88/x
  3. Step 3: Cross multiply
    451,243.60x = 622,637.22 × 257,562.88
  4. Step 4: Simplify right side
    451,243.60x = 160,368,235,578.39
  5. Step 5: Solve for x
    x = 160,368,235,578.39/451,243.60
  6. Step 6: Final answer
    x = 355,391.71

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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.