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Finding the Fourth Proportional to 1,784.22, 2,674.99 and 550.91

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Solution

The fourth proportional to 1,784.22, 2,674.99 and 550.91 is: 825.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.22 : 2,674.99 = 550.91 : x
  2. Step 2: Convert to fraction form
    1,784.22/2,674.99 = 550.91/x
  3. Step 3: Cross multiply
    1,784.22x = 2,674.99 × 550.91
  4. Step 4: Simplify right side
    1,784.22x = 1,473,662.61
  5. Step 5: Solve for x
    x = 1,473,662.61/1,784.22
  6. Step 6: Final answer
    x = 825.94

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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.