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Finding the Fourth Proportional to 311,034.60, 466,206.30 and 133,511.40

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Solution

The fourth proportional to 311,034.60, 466,206.30 and 133,511.40 is: 200,118.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,034.60 : 466,206.30 = 133,511.40 : x
  2. Step 2: Convert to fraction form
    311,034.60/466,206.30 = 133,511.40/x
  3. Step 3: Cross multiply
    311,034.60x = 466,206.30 × 133,511.40
  4. Step 4: Simplify right side
    311,034.60x = 62,243,855,801.82
  5. Step 5: Solve for x
    x = 62,243,855,801.82/311,034.60
  6. Step 6: Final answer
    x = 200,118.75

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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.