Finding the Fourth Proportional to 665,098.14, 911,187.81 and 640,190.49
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Solution
The fourth proportional to 665,098.14, 911,187.81 and 640,190.49 is: 877,064.20
Step by Step Solution
- Step 1: Write the proportion equation
665,098.14 : 911,187.81 = 640,190.49 : x - Step 2: Convert to fraction form
665,098.14/911,187.81 = 640,190.49/x - Step 3: Cross multiply
665,098.14x = 911,187.81 × 640,190.49 - Step 4: Simplify right side
665,098.14x = 583,333,765,348.44 - Step 5: Solve for x
x = 583,333,765,348.44/665,098.14 - Step 6: Final answer
x = 877,064.20
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.