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Finding the Fourth Proportional to 447,241.70, 617,182.42 and 256,242.79

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Solution

The fourth proportional to 447,241.70, 617,182.42 and 256,242.79 is: 353,608.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,241.70 : 617,182.42 = 256,242.79 : x
  2. Step 2: Convert to fraction form
    447,241.70/617,182.42 = 256,242.79/x
  3. Step 3: Cross multiply
    447,241.70x = 617,182.42 × 256,242.79
  4. Step 4: Simplify right side
    447,241.70x = 158,148,540,872.63
  5. Step 5: Solve for x
    x = 158,148,540,872.63/447,241.70
  6. Step 6: Final answer
    x = 353,608.67

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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.