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Finding the Fourth Proportional to 1,184.56, 1,634.60 and 922.88

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Solution

The fourth proportional to 1,184.56, 1,634.60 and 922.88 is: 1,273.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.56 : 1,634.60 = 922.88 : x
  2. Step 2: Convert to fraction form
    1,184.56/1,634.60 = 922.88/x
  3. Step 3: Cross multiply
    1,184.56x = 1,634.60 × 922.88
  4. Step 4: Simplify right side
    1,184.56x = 1,508,539.65
  5. Step 5: Solve for x
    x = 1,508,539.65/1,184.56
  6. Step 6: Final answer
    x = 1,273.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.