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Finding the Fourth Proportional to 483,654.82, 725,481.36 and 128,668.84

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Solution

The fourth proportional to 483,654.82, 725,481.36 and 128,668.84 is: 193,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,654.82 : 725,481.36 = 128,668.84 : x
  2. Step 2: Convert to fraction form
    483,654.82/725,481.36 = 128,668.84/x
  3. Step 3: Cross multiply
    483,654.82x = 725,481.36 × 128,668.84
  4. Step 4: Simplify right side
    483,654.82x = 93,346,845,032.82
  5. Step 5: Solve for x
    x = 93,346,845,032.82/483,654.82
  6. Step 6: Final answer
    x = 193,003.03

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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.