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Finding the Fourth Proportional to 2,493.70, 3,443.34 and 1,698.70

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Solution

The fourth proportional to 2,493.70, 3,443.34 and 1,698.70 is: 2,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,493.70 : 3,443.34 = 1,698.70 : x
  2. Step 2: Convert to fraction form
    2,493.70/3,443.34 = 1,698.70/x
  3. Step 3: Cross multiply
    2,493.70x = 3,443.34 × 1,698.70
  4. Step 4: Simplify right side
    2,493.70x = 5,849,201.66
  5. Step 5: Solve for x
    x = 5,849,201.66/2,493.70
  6. Step 6: Final answer
    x = 2,345.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.