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Finding the Fourth Proportional to 311,161.50, 465,947.95 and 248,073.63

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Solution

The fourth proportional to 311,161.50, 465,947.95 and 248,073.63 is: 371,477.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,161.50 : 465,947.95 = 248,073.63 : x
  2. Step 2: Convert to fraction form
    311,161.50/465,947.95 = 248,073.63/x
  3. Step 3: Cross multiply
    311,161.50x = 465,947.95 × 248,073.63
  4. Step 4: Simplify right side
    311,161.50x = 115,589,399,347.56
  5. Step 5: Solve for x
    x = 115,589,399,347.56/311,161.50
  6. Step 6: Final answer
    x = 371,477.19

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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.