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Finding the Fourth Proportional to 483,383.09, 667,087.58 and 330,741.43

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Solution

The fourth proportional to 483,383.09, 667,087.58 and 330,741.43 is: 456,436.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,383.09 : 667,087.58 = 330,741.43 : x
  2. Step 2: Convert to fraction form
    483,383.09/667,087.58 = 330,741.43/x
  3. Step 3: Cross multiply
    483,383.09x = 667,087.58 × 330,741.43
  4. Step 4: Simplify right side
    483,383.09x = 220,633,499,303.57
  5. Step 5: Solve for x
    x = 220,633,499,303.57/483,383.09
  6. Step 6: Final answer
    x = 456,436.11

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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.