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Finding the Fourth Proportional to 275,226.40, 384,850.40 and 275,226.40

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Solution

The fourth proportional to 275,226.40, 384,850.40 and 275,226.40 is: 384,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,226.40 : 384,850.40 = 275,226.40 : x
  2. Step 2: Convert to fraction form
    275,226.40/384,850.40 = 275,226.40/x
  3. Step 3: Cross multiply
    275,226.40x = 384,850.40 × 275,226.40
  4. Step 4: Simplify right side
    275,226.40x = 105,920,990,130.56
  5. Step 5: Solve for x
    x = 105,920,990,130.56/275,226.40
  6. Step 6: Final answer
    x = 384,850.40

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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.