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Finding the Fourth Proportional to 967,702.80, 1,448,443.80 and 687,766.80

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Solution

The fourth proportional to 967,702.80, 1,448,443.80 and 687,766.80 is: 1,029,439.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    967,702.80 : 1,448,443.80 = 687,766.80 : x
  2. Step 2: Convert to fraction form
    967,702.80/1,448,443.80 = 687,766.80/x
  3. Step 3: Cross multiply
    967,702.80x = 1,448,443.80 × 687,766.80
  4. Step 4: Simplify right side
    967,702.80x = 996,191,557,305.84
  5. Step 5: Solve for x
    x = 996,191,557,305.84/967,702.80
  6. Step 6: Final answer
    x = 1,029,439.57

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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.