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Finding the Fourth Proportional to 1,990,491.03, 2,985,738.63 and 494,583.03

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Solution

The fourth proportional to 1,990,491.03, 2,985,738.63 and 494,583.03 is: 741,875.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,491.03 : 2,985,738.63 = 494,583.03 : x
  2. Step 2: Convert to fraction form
    1,990,491.03/2,985,738.63 = 494,583.03/x
  3. Step 3: Cross multiply
    1,990,491.03x = 2,985,738.63 × 494,583.03
  4. Step 4: Simplify right side
    1,990,491.03x = 1,476,695,658,413.45
  5. Step 5: Solve for x
    x = 1,476,695,658,413.45/1,990,491.03
  6. Step 6: Final answer
    x = 741,875.06

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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.