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Finding the Fourth Proportional to 2,491,821.76, 3,738,702.40 and 996,341.44

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Solution

The fourth proportional to 2,491,821.76, 3,738,702.40 and 996,341.44 is: 1,494,899.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491,821.76 : 3,738,702.40 = 996,341.44 : x
  2. Step 2: Convert to fraction form
    2,491,821.76/3,738,702.40 = 996,341.44/x
  3. Step 3: Cross multiply
    2,491,821.76x = 3,738,702.40 × 996,341.44
  4. Step 4: Simplify right side
    2,491,821.76x = 3,725,024,132,947.46
  5. Step 5: Solve for x
    x = 3,725,024,132,947.46/2,491,821.76
  6. Step 6: Final answer
    x = 1,494,899.91

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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.