Finding the Fourth Proportional to 613,936.93, 920,860.44 and 193,333.09
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Solution
The fourth proportional to 613,936.93, 920,860.44 and 193,333.09 is: 289,985.47
Step by Step Solution
- Step 1: Write the proportion equation
613,936.93 : 920,860.44 = 193,333.09 : x - Step 2: Convert to fraction form
613,936.93/920,860.44 = 193,333.09/x - Step 3: Cross multiply
613,936.93x = 920,860.44 × 193,333.09 - Step 4: Simplify right side
613,936.93x = 178,032,791,296.81 - Step 5: Solve for x
x = 178,032,791,296.81/613,936.93 - Step 6: Final answer
x = 289,985.47
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1.5x scale
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.