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Finding the Fourth Proportional to 503,451.80, 694,606.12 and 285,624.16

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Solution

The fourth proportional to 503,451.80, 694,606.12 and 285,624.16 is: 394,072.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,451.80 : 694,606.12 = 285,624.16 : x
  2. Step 2: Convert to fraction form
    503,451.80/694,606.12 = 285,624.16/x
  3. Step 3: Cross multiply
    503,451.80x = 694,606.12 × 285,624.16
  4. Step 4: Simplify right side
    503,451.80x = 198,396,289,555.86
  5. Step 5: Solve for x
    x = 198,396,289,555.86/503,451.80
  6. Step 6: Final answer
    x = 394,072.06

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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.