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Finding the Fourth Proportional to 1,322,457.66, 1,824,991.02 and 718,845.66

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Solution

The fourth proportional to 1,322,457.66, 1,824,991.02 and 718,845.66 is: 992,006.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,457.66 : 1,824,991.02 = 718,845.66 : x
  2. Step 2: Convert to fraction form
    1,322,457.66/1,824,991.02 = 718,845.66/x
  3. Step 3: Cross multiply
    1,322,457.66x = 1,824,991.02 × 718,845.66
  4. Step 4: Simplify right side
    1,322,457.66x = 1,311,886,874,265.97
  5. Step 5: Solve for x
    x = 1,311,886,874,265.97/1,322,457.66
  6. Step 6: Final answer
    x = 992,006.71

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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.