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Finding the Fourth Proportional to 1,462.56, 2,194.20 and 436.56

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Solution

The fourth proportional to 1,462.56, 2,194.20 and 436.56 is: 654.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.56 : 2,194.20 = 436.56 : x
  2. Step 2: Convert to fraction form
    1,462.56/2,194.20 = 436.56/x
  3. Step 3: Cross multiply
    1,462.56x = 2,194.20 × 436.56
  4. Step 4: Simplify right side
    1,462.56x = 957,899.95
  5. Step 5: Solve for x
    x = 957,899.95/1,462.56
  6. Step 6: Final answer
    x = 654.95

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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.