Finding the Fourth Proportional to 1,115,273.07, 1,539,054.68 and 605,979.09
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Solution
The fourth proportional to 1,115,273.07, 1,539,054.68 and 605,979.09 is: 836,239.10
Step by Step Solution
- Step 1: Write the proportion equation
1,115,273.07 : 1,539,054.68 = 605,979.09 : x - Step 2: Convert to fraction form
1,115,273.07/1,539,054.68 = 605,979.09/x - Step 3: Cross multiply
1,115,273.07x = 1,539,054.68 × 605,979.09 - Step 4: Simplify right side
1,115,273.07x = 932,634,951,416.75 - Step 5: Solve for x
x = 932,634,951,416.75/1,115,273.07 - Step 6: Final answer
x = 836,239.10
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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.