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Finding the Fourth Proportional to 447,245.46, 617,187.59 and 256,246.54

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Solution

The fourth proportional to 447,245.46, 617,187.59 and 256,246.54 is: 353,613.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,245.46 : 617,187.59 = 256,246.54 : x
  2. Step 2: Convert to fraction form
    447,245.46/617,187.59 = 256,246.54/x
  3. Step 3: Cross multiply
    447,245.46x = 617,187.59 × 256,246.54
  4. Step 4: Simplify right side
    447,245.46x = 158,152,184,468.44
  5. Step 5: Solve for x
    x = 158,152,184,468.44/447,245.46
  6. Step 6: Final answer
    x = 353,613.84

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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.