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Finding the Fourth Proportional to 453,161.56, 678,263.82 and 333,186.70

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Solution

The fourth proportional to 453,161.56, 678,263.82 and 333,186.70 is: 498,692.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,161.56 : 678,263.82 = 333,186.70 : x
  2. Step 2: Convert to fraction form
    453,161.56/678,263.82 = 333,186.70/x
  3. Step 3: Cross multiply
    453,161.56x = 678,263.82 × 333,186.70
  4. Step 4: Simplify right side
    453,161.56x = 225,988,483,915.19
  5. Step 5: Solve for x
    x = 225,988,483,915.19/453,161.56
  6. Step 6: Final answer
    x = 498,692.97

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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.