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Finding the Fourth Proportional to 1,233.38, 1,850.26 and 411.46

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Solution

The fourth proportional to 1,233.38, 1,850.26 and 411.46 is: 617.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.38 : 1,850.26 = 411.46 : x
  2. Step 2: Convert to fraction form
    1,233.38/1,850.26 = 411.46/x
  3. Step 3: Cross multiply
    1,233.38x = 1,850.26 × 411.46
  4. Step 4: Simplify right side
    1,233.38x = 761,307.98
  5. Step 5: Solve for x
    x = 761,307.98/1,233.38
  6. Step 6: Final answer
    x = 617.25

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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.