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Finding the Fourth Proportional to 265,744.90, 398,617.35 and 254,226.70

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Solution

The fourth proportional to 265,744.90, 398,617.35 and 254,226.70 is: 381,340.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,744.90 : 398,617.35 = 254,226.70 : x
  2. Step 2: Convert to fraction form
    265,744.90/398,617.35 = 254,226.70/x
  3. Step 3: Cross multiply
    265,744.90x = 398,617.35 × 254,226.70
  4. Step 4: Simplify right side
    265,744.90x = 101,339,173,453.25
  5. Step 5: Solve for x
    x = 101,339,173,453.25/265,744.90
  6. Step 6: Final answer
    x = 381,340.05

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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.