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Finding the Fourth Proportional to 443,310.96, 665,059.85 and 143,768.19

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Solution

The fourth proportional to 443,310.96, 665,059.85 and 143,768.19 is: 215,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,310.96 : 665,059.85 = 143,768.19 : x
  2. Step 2: Convert to fraction form
    443,310.96/665,059.85 = 143,768.19/x
  3. Step 3: Cross multiply
    443,310.96x = 665,059.85 × 143,768.19
  4. Step 4: Simplify right side
    443,310.96x = 95,614,448,202.49
  5. Step 5: Solve for x
    x = 95,614,448,202.49/443,310.96
  6. Step 6: Final answer
    x = 215,682.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.