Finding the Fourth Proportional to 1,186,430.33, 1,637,273.27 and 642,566.09
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Solution
The fourth proportional to 1,186,430.33, 1,637,273.27 and 642,566.09 is: 886,740.89
Step by Step Solution
- Step 1: Write the proportion equation
1,186,430.33 : 1,637,273.27 = 642,566.09 : x - Step 2: Convert to fraction form
1,186,430.33/1,637,273.27 = 642,566.09/x - Step 3: Cross multiply
1,186,430.33x = 1,637,273.27 × 642,566.09 - Step 4: Simplify right side
1,186,430.33x = 1,052,056,289,065.01 - Step 5: Solve for x
x = 1,052,056,289,065.01/1,186,430.33 - Step 6: Final answer
x = 886,740.89
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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.