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Finding the Fourth Proportional to 836.14, 1,153.73 and 482.07

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Solution

The fourth proportional to 836.14, 1,153.73 and 482.07 is: 665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.14 : 1,153.73 = 482.07 : x
  2. Step 2: Convert to fraction form
    836.14/1,153.73 = 482.07/x
  3. Step 3: Cross multiply
    836.14x = 1,153.73 × 482.07
  4. Step 4: Simplify right side
    836.14x = 556,178.62
  5. Step 5: Solve for x
    x = 556,178.62/836.14
  6. Step 6: Final answer
    x = 665.18

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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.