Finding the Fourth Proportional to 1,969,603.76, 2,953,297.49 and 621,515.09
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Solution
The fourth proportional to 1,969,603.76, 2,953,297.49 and 621,515.09 is: 931,922.95
Step by Step Solution
- Step 1: Write the proportion equation
1,969,603.76 : 2,953,297.49 = 621,515.09 : x - Step 2: Convert to fraction form
1,969,603.76/2,953,297.49 = 621,515.09/x - Step 3: Cross multiply
1,969,603.76x = 2,953,297.49 × 621,515.09 - Step 4: Simplify right side
1,969,603.76x = 1,835,518,937,420.06 - Step 5: Solve for x
x = 1,835,518,937,420.06/1,969,603.76 - Step 6: Final answer
x = 931,922.95
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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.