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Finding the Fourth Proportional to 296,871.40, 445,307.10 and 267,322.60

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Solution

The fourth proportional to 296,871.40, 445,307.10 and 267,322.60 is: 400,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,871.40 : 445,307.10 = 267,322.60 : x
  2. Step 2: Convert to fraction form
    296,871.40/445,307.10 = 267,322.60/x
  3. Step 3: Cross multiply
    296,871.40x = 445,307.10 × 267,322.60
  4. Step 4: Simplify right side
    296,871.40x = 119,040,651,770.46
  5. Step 5: Solve for x
    x = 119,040,651,770.46/296,871.40
  6. Step 6: Final answer
    x = 400,983.90

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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.