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Finding the Fourth Proportional to 366,961.45, 550,442.18 and 254,987.05

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Solution

The fourth proportional to 366,961.45, 550,442.18 and 254,987.05 is: 382,480.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,961.45 : 550,442.18 = 254,987.05 : x
  2. Step 2: Convert to fraction form
    366,961.45/550,442.18 = 254,987.05/x
  3. Step 3: Cross multiply
    366,961.45x = 550,442.18 × 254,987.05
  4. Step 4: Simplify right side
    366,961.45x = 140,355,627,673.77
  5. Step 5: Solve for x
    x = 140,355,627,673.77/366,961.45
  6. Step 6: Final answer
    x = 382,480.58

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Similar ratio
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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.