Finding the Fourth Proportional to 2,312,127.40, 3,190,712.30 and 1,279,637.19
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Solution
The fourth proportional to 2,312,127.40, 3,190,712.30 and 1,279,637.19 is: 1,765,886.31
Step by Step Solution
- Step 1: Write the proportion equation
2,312,127.40 : 3,190,712.30 = 1,279,637.19 : x - Step 2: Convert to fraction form
2,312,127.40/3,190,712.30 = 1,279,637.19/x - Step 3: Cross multiply
2,312,127.40x = 3,190,712.30 × 1,279,637.19 - Step 4: Simplify right side
2,312,127.40x = 4,082,954,121,670.44 - Step 5: Solve for x
x = 4,082,954,121,670.44/2,312,127.40 - Step 6: Final answer
x = 1,765,886.31
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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.