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Finding the Fourth Proportional to 270,609.22, 405,937.68 and 70,928.92

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Solution

The fourth proportional to 270,609.22, 405,937.68 and 70,928.92 is: 106,399.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,609.22 : 405,937.68 = 70,928.92 : x
  2. Step 2: Convert to fraction form
    270,609.22/405,937.68 = 70,928.92/x
  3. Step 3: Cross multiply
    270,609.22x = 405,937.68 × 70,928.92
  4. Step 4: Simplify right side
    270,609.22x = 28,792,721,229.71
  5. Step 5: Solve for x
    x = 28,792,721,229.71/270,609.22
  6. Step 6: Final answer
    x = 106,399.63

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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.