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Finding the Fourth Proportional to 1,674.58, 2,511.39 and 563.88

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Solution

The fourth proportional to 1,674.58, 2,511.39 and 563.88 is: 845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.58 : 2,511.39 = 563.88 : x
  2. Step 2: Convert to fraction form
    1,674.58/2,511.39 = 563.88/x
  3. Step 3: Cross multiply
    1,674.58x = 2,511.39 × 563.88
  4. Step 4: Simplify right side
    1,674.58x = 1,416,110.04
  5. Step 5: Solve for x
    x = 1,416,110.04/1,674.58
  6. Step 6: Final answer
    x = 845.65

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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.