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Finding the Fourth Proportional to 2,462.18, 3,693.15 and 613.26

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Solution

The fourth proportional to 2,462.18, 3,693.15 and 613.26 is: 919.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,462.18 : 3,693.15 = 613.26 : x
  2. Step 2: Convert to fraction form
    2,462.18/3,693.15 = 613.26/x
  3. Step 3: Cross multiply
    2,462.18x = 3,693.15 × 613.26
  4. Step 4: Simplify right side
    2,462.18x = 2,264,861.17
  5. Step 5: Solve for x
    x = 2,264,861.17/2,462.18
  6. Step 6: Final answer
    x = 919.86

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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.