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Finding the Fourth Proportional to 1,663.14, 2,494.94 and 567.21

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Solution

The fourth proportional to 1,663.14, 2,494.94 and 567.21 is: 850.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.14 : 2,494.94 = 567.21 : x
  2. Step 2: Convert to fraction form
    1,663.14/2,494.94 = 567.21/x
  3. Step 3: Cross multiply
    1,663.14x = 2,494.94 × 567.21
  4. Step 4: Simplify right side
    1,663.14x = 1,415,152.08
  5. Step 5: Solve for x
    x = 1,415,152.08/1,663.14
  6. Step 6: Final answer
    x = 850.89

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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.