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Finding the Fourth Proportional to 2,849.99, 4,272.19 and 999.79

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Solution

The fourth proportional to 2,849.99, 4,272.19 and 999.79 is: 1,498.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.99 : 4,272.19 = 999.79 : x
  2. Step 2: Convert to fraction form
    2,849.99/4,272.19 = 999.79/x
  3. Step 3: Cross multiply
    2,849.99x = 4,272.19 × 999.79
  4. Step 4: Simplify right side
    2,849.99x = 4,271,309.32
  5. Step 5: Solve for x
    x = 4,271,309.32/2,849.99
  6. Step 6: Final answer
    x = 1,498.71

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.