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Finding the Fourth Proportional to 1,436.22, 2,154.54 and 462.54

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Solution

The fourth proportional to 1,436.22, 2,154.54 and 462.54 is: 693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.22 : 2,154.54 = 462.54 : x
  2. Step 2: Convert to fraction form
    1,436.22/2,154.54 = 462.54/x
  3. Step 3: Cross multiply
    1,436.22x = 2,154.54 × 462.54
  4. Step 4: Simplify right side
    1,436.22x = 996,560.93
  5. Step 5: Solve for x
    x = 996,560.93/1,436.22
  6. Step 6: Final answer
    x = 693.88

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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.