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Finding the Fourth Proportional to 1,597.46, 2,395.11 and 816.83

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Solution

The fourth proportional to 1,597.46, 2,395.11 and 816.83 is: 1,224.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,597.46 : 2,395.11 = 816.83 : x
  2. Step 2: Convert to fraction form
    1,597.46/2,395.11 = 816.83/x
  3. Step 3: Cross multiply
    1,597.46x = 2,395.11 × 816.83
  4. Step 4: Simplify right side
    1,597.46x = 1,956,388.74
  5. Step 5: Solve for x
    x = 1,956,388.74/1,597.46
  6. Step 6: Final answer
    x = 1,224.68

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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.