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Finding the Fourth Proportional to 874,363.56, 1,311,591.84 and 275,371.56

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Solution

The fourth proportional to 874,363.56, 1,311,591.84 and 275,371.56 is: 413,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,363.56 : 1,311,591.84 = 275,371.56 : x
  2. Step 2: Convert to fraction form
    874,363.56/1,311,591.84 = 275,371.56/x
  3. Step 3: Cross multiply
    874,363.56x = 1,311,591.84 × 275,371.56
  4. Step 4: Simplify right side
    874,363.56x = 361,175,091,064.07
  5. Step 5: Solve for x
    x = 361,175,091,064.07/874,363.56
  6. Step 6: Final answer
    x = 413,071.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.