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Finding the Fourth Proportional to 253,256.54, 379,195.43 and 178,264.31

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Solution

The fourth proportional to 253,256.54, 379,195.43 and 178,264.31 is: 266,911.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,256.54 : 379,195.43 = 178,264.31 : x
  2. Step 2: Convert to fraction form
    253,256.54/379,195.43 = 178,264.31/x
  3. Step 3: Cross multiply
    253,256.54x = 379,195.43 × 178,264.31
  4. Step 4: Simplify right side
    253,256.54x = 67,597,008,896.80
  5. Step 5: Solve for x
    x = 67,597,008,896.80/253,256.54
  6. Step 6: Final answer
    x = 266,911.21

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1.5x scale

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.