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Finding the Fourth Proportional to 1,462.59, 2,193.85 and 436.59

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Solution

The fourth proportional to 1,462.59, 2,193.85 and 436.59 is: 654.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.59 : 2,193.85 = 436.59 : x
  2. Step 2: Convert to fraction form
    1,462.59/2,193.85 = 436.59/x
  3. Step 3: Cross multiply
    1,462.59x = 2,193.85 × 436.59
  4. Step 4: Simplify right side
    1,462.59x = 957,812.97
  5. Step 5: Solve for x
    x = 957,812.97/1,462.59
  6. Step 6: Final answer
    x = 654.87

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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.