Home / 277,520.20-416,280.30-202,287.40

Finding the Fourth Proportional to 277,520.20, 416,280.30 and 202,287.40

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Solution

The fourth proportional to 277,520.20, 416,280.30 and 202,287.40 is: 303,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,520.20 : 416,280.30 = 202,287.40 : x
  2. Step 2: Convert to fraction form
    277,520.20/416,280.30 = 202,287.40/x
  3. Step 3: Cross multiply
    277,520.20x = 416,280.30 × 202,287.40
  4. Step 4: Simplify right side
    277,520.20x = 84,208,259,558.22
  5. Step 5: Solve for x
    x = 84,208,259,558.22/277,520.20
  6. Step 6: Final answer
    x = 303,431.10

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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.