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Finding the Fourth Proportional to 443,806.56, 612,419.94 and 252,782.64

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Solution

The fourth proportional to 443,806.56, 612,419.94 and 252,782.64 is: 348,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,806.56 : 612,419.94 = 252,782.64 : x
  2. Step 2: Convert to fraction form
    443,806.56/612,419.94 = 252,782.64/x
  3. Step 3: Cross multiply
    443,806.56x = 612,419.94 × 252,782.64
  4. Step 4: Simplify right side
    443,806.56x = 154,809,129,221.84
  5. Step 5: Solve for x
    x = 154,809,129,221.84/443,806.56
  6. Step 6: Final answer
    x = 348,821.18

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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.