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Finding the Fourth Proportional to 311,911.10, 466,991.85 and 303,163.10

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Solution

The fourth proportional to 311,911.10, 466,991.85 and 303,163.10 is: 453,894.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,911.10 : 466,991.85 = 303,163.10 : x
  2. Step 2: Convert to fraction form
    311,911.10/466,991.85 = 303,163.10/x
  3. Step 3: Cross multiply
    311,911.10x = 466,991.85 × 303,163.10
  4. Step 4: Simplify right side
    311,911.10x = 141,574,696,920.74
  5. Step 5: Solve for x
    x = 141,574,696,920.74/311,911.10
  6. Step 6: Final answer
    x = 453,894.39

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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.