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Finding the Fourth Proportional to 490,158.54, 676,592.60 and 296,576.24

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Solution

The fourth proportional to 490,158.54, 676,592.60 and 296,576.24 is: 409,380.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,158.54 : 676,592.60 = 296,576.24 : x
  2. Step 2: Convert to fraction form
    490,158.54/676,592.60 = 296,576.24/x
  3. Step 3: Cross multiply
    490,158.54x = 676,592.60 × 296,576.24
  4. Step 4: Simplify right side
    490,158.54x = 200,661,284,453.98
  5. Step 5: Solve for x
    x = 200,661,284,453.98/490,158.54
  6. Step 6: Final answer
    x = 409,380.37

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1.5x scale

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.