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Finding the Fourth Proportional to 277,811.68, 416,279.76 and 214,785.60

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Solution

The fourth proportional to 277,811.68, 416,279.76 and 214,785.60 is: 321,839.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,811.68 : 416,279.76 = 214,785.60 : x
  2. Step 2: Convert to fraction form
    277,811.68/416,279.76 = 214,785.60/x
  3. Step 3: Cross multiply
    277,811.68x = 416,279.76 × 214,785.60
  4. Step 4: Simplify right side
    277,811.68x = 89,410,898,019.46
  5. Step 5: Solve for x
    x = 89,410,898,019.46/277,811.68
  6. Step 6: Final answer
    x = 321,839.95

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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.