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Finding the Fourth Proportional to 835,672.80, 1,253,710.80 and 274,677.60

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Solution

The fourth proportional to 835,672.80, 1,253,710.80 and 274,677.60 is: 412,082.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,672.80 : 1,253,710.80 = 274,677.60 : x
  2. Step 2: Convert to fraction form
    835,672.80/1,253,710.80 = 274,677.60/x
  3. Step 3: Cross multiply
    835,672.80x = 1,253,710.80 × 274,677.60
  4. Step 4: Simplify right side
    835,672.80x = 344,366,273,638.08
  5. Step 5: Solve for x
    x = 344,366,273,638.08/835,672.80
  6. Step 6: Final answer
    x = 412,082.66

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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.