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Finding the Fourth Proportional to 404,664.16, 557,696.44 and 268,457.80

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Solution

The fourth proportional to 404,664.16, 557,696.44 and 268,457.80 is: 369,980.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,664.16 : 557,696.44 = 268,457.80 : x
  2. Step 2: Convert to fraction form
    404,664.16/557,696.44 = 268,457.80/x
  3. Step 3: Cross multiply
    404,664.16x = 557,696.44 × 268,457.80
  4. Step 4: Simplify right side
    404,664.16x = 149,717,959,350.23
  5. Step 5: Solve for x
    x = 149,717,959,350.23/404,664.16
  6. Step 6: Final answer
    x = 369,980.77

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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.