Home / 263,073.51-394,613.91-85,581.45

Finding the Fourth Proportional to 263,073.51, 394,613.91 and 85,581.45

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Solution

The fourth proportional to 263,073.51, 394,613.91 and 85,581.45 is: 128,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,073.51 : 394,613.91 = 85,581.45 : x
  2. Step 2: Convert to fraction form
    263,073.51/394,613.91 = 85,581.45/x
  3. Step 3: Cross multiply
    263,073.51x = 394,613.91 × 85,581.45
  4. Step 4: Simplify right side
    263,073.51x = 33,771,630,607.97
  5. Step 5: Solve for x
    x = 33,771,630,607.97/263,073.51
  6. Step 6: Final answer
    x = 128,373.36

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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.