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Finding the Fourth Proportional to 3,338.88, 5,004.95 and 1,690.44

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Solution

The fourth proportional to 3,338.88, 5,004.95 and 1,690.44 is: 2,533.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.88 : 5,004.95 = 1,690.44 : x
  2. Step 2: Convert to fraction form
    3,338.88/5,004.95 = 1,690.44/x
  3. Step 3: Cross multiply
    3,338.88x = 5,004.95 × 1,690.44
  4. Step 4: Simplify right side
    3,338.88x = 8,460,559.23
  5. Step 5: Solve for x
    x = 8,460,559.23/3,338.88
  6. Step 6: Final answer
    x = 2,533.95

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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.