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Finding the Fourth Proportional to 1,176.44, 1,764.93 and 406.94

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Solution

The fourth proportional to 1,176.44, 1,764.93 and 406.94 is: 610.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.44 : 1,764.93 = 406.94 : x
  2. Step 2: Convert to fraction form
    1,176.44/1,764.93 = 406.94/x
  3. Step 3: Cross multiply
    1,176.44x = 1,764.93 × 406.94
  4. Step 4: Simplify right side
    1,176.44x = 718,215.18
  5. Step 5: Solve for x
    x = 718,215.18/1,176.44
  6. Step 6: Final answer
    x = 610.50

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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.