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Finding the Fourth Proportional to 270,735.83, 405,659.86 and 191,708.18

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Solution

The fourth proportional to 270,735.83, 405,659.86 and 191,708.18 is: 287,247.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,735.83 : 405,659.86 = 191,708.18 : x
  2. Step 2: Convert to fraction form
    270,735.83/405,659.86 = 191,708.18/x
  3. Step 3: Cross multiply
    270,735.83x = 405,659.86 × 191,708.18
  4. Step 4: Simplify right side
    270,735.83x = 77,768,313,459.65
  5. Step 5: Solve for x
    x = 77,768,313,459.65/270,735.83
  6. Step 6: Final answer
    x = 287,247.95

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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.