Finding the Fourth Proportional to 1,138,603.09, 1,571,270.93 and 622,360.37
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Solution
The fourth proportional to 1,138,603.09, 1,571,270.93 and 622,360.37 is: 858,856.59
Step by Step Solution
- Step 1: Write the proportion equation
1,138,603.09 : 1,571,270.93 = 622,360.37 : x - Step 2: Convert to fraction form
1,138,603.09/1,571,270.93 = 622,360.37/x - Step 3: Cross multiply
1,138,603.09x = 1,571,270.93 × 622,360.37 - Step 4: Simplify right side
1,138,603.09x = 977,896,760,209.13 - Step 5: Solve for x
x = 977,896,760,209.13/1,138,603.09 - Step 6: Final answer
x = 858,856.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.