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Finding the Fourth Proportional to 485,214.44, 669,634.34 and 267,461.77

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Solution

The fourth proportional to 485,214.44, 669,634.34 and 267,461.77 is: 369,118.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,214.44 : 669,634.34 = 267,461.77 : x
  2. Step 2: Convert to fraction form
    485,214.44/669,634.34 = 267,461.77/x
  3. Step 3: Cross multiply
    485,214.44x = 669,634.34 × 267,461.77
  4. Step 4: Simplify right side
    485,214.44x = 179,101,585,829.18
  5. Step 5: Solve for x
    x = 179,101,585,829.18/485,214.44
  6. Step 6: Final answer
    x = 369,118.42

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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.