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Finding the Fourth Proportional to 2,974,690.80, 4,105,072.80 and 1,616,563.44

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Solution

The fourth proportional to 2,974,690.80, 4,105,072.80 and 1,616,563.44 is: 2,230,857.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974,690.80 : 4,105,072.80 = 1,616,563.44 : x
  2. Step 2: Convert to fraction form
    2,974,690.80/4,105,072.80 = 1,616,563.44/x
  3. Step 3: Cross multiply
    2,974,690.80x = 4,105,072.80 × 1,616,563.44
  4. Step 4: Simplify right side
    2,974,690.80x = 6,636,110,607,018.43
  5. Step 5: Solve for x
    x = 6,636,110,607,018.43/2,974,690.80
  6. Step 6: Final answer
    x = 2,230,857.27

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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.