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Finding the Fourth Proportional to 1,144.85, 1,717.37 and 364.96

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Solution

The fourth proportional to 1,144.85, 1,717.37 and 364.96 is: 547.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.85 : 1,717.37 = 364.96 : x
  2. Step 2: Convert to fraction form
    1,144.85/1,717.37 = 364.96/x
  3. Step 3: Cross multiply
    1,144.85x = 1,717.37 × 364.96
  4. Step 4: Simplify right side
    1,144.85x = 626,776.67
  5. Step 5: Solve for x
    x = 626,776.67/1,144.85
  6. Step 6: Final answer
    x = 547.47

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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.