Finding the Fourth Proportional to 1,666,207.14, 2,299,388.18 and 931,129.12
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Solution
The fourth proportional to 1,666,207.14, 2,299,388.18 and 931,129.12 is: 1,284,970.66
Step by Step Solution
- Step 1: Write the proportion equation
1,666,207.14 : 2,299,388.18 = 931,129.12 : x - Step 2: Convert to fraction form
1,666,207.14/2,299,388.18 = 931,129.12/x - Step 3: Cross multiply
1,666,207.14x = 2,299,388.18 × 931,129.12 - Step 4: Simplify right side
1,666,207.14x = 2,141,027,292,581.80 - Step 5: Solve for x
x = 2,141,027,292,581.80/1,666,207.14 - Step 6: Final answer
x = 1,284,970.66
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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.