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Finding the Fourth Proportional to 1,116, 1,674.30 and 335.97

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Solution

The fourth proportional to 1,116, 1,674.30 and 335.97 is: 504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116 : 1,674.30 = 335.97 : x
  2. Step 2: Convert to fraction form
    1,116/1,674.30 = 335.97/x
  3. Step 3: Cross multiply
    1,116x = 1,674.30 × 335.97
  4. Step 4: Simplify right side
    1,116x = 562,514.57
  5. Step 5: Solve for x
    x = 562,514.57/1,116
  6. Step 6: Final answer
    x = 504.05

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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.