Home / 892,615.21-1,231,819.01-484,721.89

Finding the Fourth Proportional to 892,615.21, 1,231,819.01 and 484,721.89

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Solution

The fourth proportional to 892,615.21, 1,231,819.01 and 484,721.89 is: 668,921.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,615.21 : 1,231,819.01 = 484,721.89 : x
  2. Step 2: Convert to fraction form
    892,615.21/1,231,819.01 = 484,721.89/x
  3. Step 3: Cross multiply
    892,615.21x = 1,231,819.01 × 484,721.89
  4. Step 4: Simplify right side
    892,615.21x = 597,089,634,979.68
  5. Step 5: Solve for x
    x = 597,089,634,979.68/892,615.21
  6. Step 6: Final answer
    x = 668,921.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.