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Finding the Fourth Proportional to 379,855.84, 524,168.40 and 210,047.44

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Solution

The fourth proportional to 379,855.84, 524,168.40 and 210,047.44 is: 289,847.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,855.84 : 524,168.40 = 210,047.44 : x
  2. Step 2: Convert to fraction form
    379,855.84/524,168.40 = 210,047.44/x
  3. Step 3: Cross multiply
    379,855.84x = 524,168.40 × 210,047.44
  4. Step 4: Simplify right side
    379,855.84x = 110,100,230,548.90
  5. Step 5: Solve for x
    x = 110,100,230,548.90/379,855.84
  6. Step 6: Final answer
    x = 289,847.41

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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.