Home / 621,839.68-932,749.08-280,093.06

Finding the Fourth Proportional to 621,839.68, 932,749.08 and 280,093.06

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Solution

The fourth proportional to 621,839.68, 932,749.08 and 280,093.06 is: 420,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,839.68 : 932,749.08 = 280,093.06 : x
  2. Step 2: Convert to fraction form
    621,839.68/932,749.08 = 280,093.06/x
  3. Step 3: Cross multiply
    621,839.68x = 932,749.08 × 280,093.06
  4. Step 4: Simplify right side
    621,839.68x = 261,256,544,029.39
  5. Step 5: Solve for x
    x = 261,256,544,029.39/621,839.68
  6. Step 6: Final answer
    x = 420,134.89

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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.