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Finding the Fourth Proportional to 443,447.76, 611,958.48 and 252,461.15

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Solution

The fourth proportional to 443,447.76, 611,958.48 and 252,461.15 is: 348,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,447.76 : 611,958.48 = 252,461.15 : x
  2. Step 2: Convert to fraction form
    443,447.76/611,958.48 = 252,461.15/x
  3. Step 3: Cross multiply
    443,447.76x = 611,958.48 × 252,461.15
  4. Step 4: Simplify right side
    443,447.76x = 154,495,738,553.26
  5. Step 5: Solve for x
    x = 154,495,738,553.26/443,447.76
  6. Step 6: Final answer
    x = 348,396.71

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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.