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Finding the Fourth Proportional to 611,324.69, 916,692.10 and 256,243.37

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Solution

The fourth proportional to 611,324.69, 916,692.10 and 256,243.37 is: 384,241.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,324.69 : 916,692.10 = 256,243.37 : x
  2. Step 2: Convert to fraction form
    611,324.69/916,692.10 = 256,243.37/x
  3. Step 3: Cross multiply
    611,324.69x = 916,692.10 × 256,243.37
  4. Step 4: Simplify right side
    611,324.69x = 234,896,274,607.50
  5. Step 5: Solve for x
    x = 234,896,274,607.50/611,324.69
  6. Step 6: Final answer
    x = 384,241.43

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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.