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Finding the Fourth Proportional to 1,466.90, 2,198.83 and 773.13

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Solution

The fourth proportional to 1,466.90, 2,198.83 and 773.13 is: 1,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,466.90 : 2,198.83 = 773.13 : x
  2. Step 2: Convert to fraction form
    1,466.90/2,198.83 = 773.13/x
  3. Step 3: Cross multiply
    1,466.90x = 2,198.83 × 773.13
  4. Step 4: Simplify right side
    1,466.90x = 1,699,981.44
  5. Step 5: Solve for x
    x = 1,699,981.44/1,466.90
  6. Step 6: Final answer
    x = 1,158.89

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1.5x scale

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.