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Finding the Fourth Proportional to 1,194.12, 1,790.48 and 360.93

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Solution

The fourth proportional to 1,194.12, 1,790.48 and 360.93 is: 541.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.12 : 1,790.48 = 360.93 : x
  2. Step 2: Convert to fraction form
    1,194.12/1,790.48 = 360.93/x
  3. Step 3: Cross multiply
    1,194.12x = 1,790.48 × 360.93
  4. Step 4: Simplify right side
    1,194.12x = 646,236.14
  5. Step 5: Solve for x
    x = 646,236.14/1,194.12
  6. Step 6: Final answer
    x = 541.18

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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.