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Finding the Fourth Proportional to 483,638.18, 667,213.66 and 302,034.83

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Solution

The fourth proportional to 483,638.18, 667,213.66 and 302,034.83 is: 416,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,638.18 : 667,213.66 = 302,034.83 : x
  2. Step 2: Convert to fraction form
    483,638.18/667,213.66 = 302,034.83/x
  3. Step 3: Cross multiply
    483,638.18x = 667,213.66 × 302,034.83
  4. Step 4: Simplify right side
    483,638.18x = 201,521,765,284.73
  5. Step 5: Solve for x
    x = 201,521,765,284.73/483,638.18
  6. Step 6: Final answer
    x = 416,678.77

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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.