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Finding the Fourth Proportional to 1,162.29, 1,739.08 and 692.04

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Solution

The fourth proportional to 1,162.29, 1,739.08 and 692.04 is: 1,035.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.29 : 1,739.08 = 692.04 : x
  2. Step 2: Convert to fraction form
    1,162.29/1,739.08 = 692.04/x
  3. Step 3: Cross multiply
    1,162.29x = 1,739.08 × 692.04
  4. Step 4: Simplify right side
    1,162.29x = 1,203,518.36
  5. Step 5: Solve for x
    x = 1,203,518.36/1,162.29
  6. Step 6: Final answer
    x = 1,035.47

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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.