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Finding the Fourth Proportional to 1,144.03, 1,716.05 and 374.53

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Solution

The fourth proportional to 1,144.03, 1,716.05 and 374.53 is: 561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.03 : 1,716.05 = 374.53 : x
  2. Step 2: Convert to fraction form
    1,144.03/1,716.05 = 374.53/x
  3. Step 3: Cross multiply
    1,144.03x = 1,716.05 × 374.53
  4. Step 4: Simplify right side
    1,144.03x = 642,712.21
  5. Step 5: Solve for x
    x = 642,712.21/1,144.03
  6. Step 6: Final answer
    x = 561.80

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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.