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Finding the Fourth Proportional to 1,708.22, 2,562.74 and 553.97

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Solution

The fourth proportional to 1,708.22, 2,562.74 and 553.97 is: 831.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.22 : 2,562.74 = 553.97 : x
  2. Step 2: Convert to fraction form
    1,708.22/2,562.74 = 553.97/x
  3. Step 3: Cross multiply
    1,708.22x = 2,562.74 × 553.97
  4. Step 4: Simplify right side
    1,708.22x = 1,419,678.31
  5. Step 5: Solve for x
    x = 1,419,678.31/1,708.22
  6. Step 6: Final answer
    x = 831.09

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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.