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Finding the Fourth Proportional to 266,062.70, 399,094.05 and 252,940.70

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Solution

The fourth proportional to 266,062.70, 399,094.05 and 252,940.70 is: 379,411.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,062.70 : 399,094.05 = 252,940.70 : x
  2. Step 2: Convert to fraction form
    266,062.70/399,094.05 = 252,940.70/x
  3. Step 3: Cross multiply
    266,062.70x = 399,094.05 × 252,940.70
  4. Step 4: Simplify right side
    266,062.70x = 100,947,128,372.84
  5. Step 5: Solve for x
    x = 100,947,128,372.84/266,062.70
  6. Step 6: Final answer
    x = 379,411.05

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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.