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Finding the Fourth Proportional to 1,322,231.04, 1,824,672.42 and 718,619.04

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Solution

The fourth proportional to 1,322,231.04, 1,824,672.42 and 718,619.04 is: 991,690.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,231.04 : 1,824,672.42 = 718,619.04 : x
  2. Step 2: Convert to fraction form
    1,322,231.04/1,824,672.42 = 718,619.04/x
  3. Step 3: Cross multiply
    1,322,231.04x = 1,824,672.42 × 718,619.04
  4. Step 4: Simplify right side
    1,322,231.04x = 1,311,244,342,774.88
  5. Step 5: Solve for x
    x = 1,311,244,342,774.88/1,322,231.04
  6. Step 6: Final answer
    x = 991,690.79

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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.