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Finding the Fourth Proportional to 873,715.33, 1,310,571.87 and 274,728.88

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Solution

The fourth proportional to 873,715.33, 1,310,571.87 and 274,728.88 is: 412,092.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,715.33 : 1,310,571.87 = 274,728.88 : x
  2. Step 2: Convert to fraction form
    873,715.33/1,310,571.87 = 274,728.88/x
  3. Step 3: Cross multiply
    873,715.33x = 1,310,571.87 × 274,728.88
  4. Step 4: Simplify right side
    873,715.33x = 360,051,942,004.61
  5. Step 5: Solve for x
    x = 360,051,942,004.61/873,715.33
  6. Step 6: Final answer
    x = 412,092.97

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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.