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Finding the Fourth Proportional to 1,326.14, 1,989.43 and 596.22

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Solution

The fourth proportional to 1,326.14, 1,989.43 and 596.22 is: 894.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.14 : 1,989.43 = 596.22 : x
  2. Step 2: Convert to fraction form
    1,326.14/1,989.43 = 596.22/x
  3. Step 3: Cross multiply
    1,326.14x = 1,989.43 × 596.22
  4. Step 4: Simplify right side
    1,326.14x = 1,186,143.92
  5. Step 5: Solve for x
    x = 1,186,143.92/1,326.14
  6. Step 6: Final answer
    x = 894.44

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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.