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Finding the Fourth Proportional to 3,193.73, 4,790.24 and 853.94

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Solution

The fourth proportional to 3,193.73, 4,790.24 and 853.94 is: 1,280.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.73 : 4,790.24 = 853.94 : x
  2. Step 2: Convert to fraction form
    3,193.73/4,790.24 = 853.94/x
  3. Step 3: Cross multiply
    3,193.73x = 4,790.24 × 853.94
  4. Step 4: Simplify right side
    3,193.73x = 4,090,549.32
  5. Step 5: Solve for x
    x = 4,090,549.32/3,193.73
  6. Step 6: Final answer
    x = 1,280.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.