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Finding the Fourth Proportional to 222,328.80, 311,882.40 and 222,328.80

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Solution

The fourth proportional to 222,328.80, 311,882.40 and 222,328.80 is: 311,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,328.80 : 311,882.40 = 222,328.80 : x
  2. Step 2: Convert to fraction form
    222,328.80/311,882.40 = 222,328.80/x
  3. Step 3: Cross multiply
    222,328.80x = 311,882.40 × 222,328.80
  4. Step 4: Simplify right side
    222,328.80x = 69,340,439,733.12
  5. Step 5: Solve for x
    x = 69,340,439,733.12/222,328.80
  6. Step 6: Final answer
    x = 311,882.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.