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Finding the Fourth Proportional to 1,974,578.76, 2,961,982.98 and 554,745.56

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Solution

The fourth proportional to 1,974,578.76, 2,961,982.98 and 554,745.56 is: 832,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,578.76 : 2,961,982.98 = 554,745.56 : x
  2. Step 2: Convert to fraction form
    1,974,578.76/2,961,982.98 = 554,745.56/x
  3. Step 3: Cross multiply
    1,974,578.76x = 2,961,982.98 × 554,745.56
  4. Step 4: Simplify right side
    1,974,578.76x = 1,643,146,892,140.65
  5. Step 5: Solve for x
    x = 1,643,146,892,140.65/1,974,578.76
  6. Step 6: Final answer
    x = 832,150.60

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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.