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Finding the Fourth Proportional to 2,411.04, 3,616.86 and 679.67

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Solution

The fourth proportional to 2,411.04, 3,616.86 and 679.67 is: 1,019.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.04 : 3,616.86 = 679.67 : x
  2. Step 2: Convert to fraction form
    2,411.04/3,616.86 = 679.67/x
  3. Step 3: Cross multiply
    2,411.04x = 3,616.86 × 679.67
  4. Step 4: Simplify right side
    2,411.04x = 2,458,271.24
  5. Step 5: Solve for x
    x = 2,458,271.24/2,411.04
  6. Step 6: Final answer
    x = 1,019.59

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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.