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Finding the Fourth Proportional to 482,916.84, 666,391.89 and 268,040.00

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Solution

The fourth proportional to 482,916.84, 666,391.89 and 268,040.00 is: 369,876.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,916.84 : 666,391.89 = 268,040.00 : x
  2. Step 2: Convert to fraction form
    482,916.84/666,391.89 = 268,040.00/x
  3. Step 3: Cross multiply
    482,916.84x = 666,391.89 × 268,040.00
  4. Step 4: Simplify right side
    482,916.84x = 178,619,678,863.64
  5. Step 5: Solve for x
    x = 178,619,678,863.64/482,916.84
  6. Step 6: Final answer
    x = 369,876.68

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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.