Finding the Fourth Proportional to 1,186,659.12, 1,637,507.97 and 663,335.94
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Solution
The fourth proportional to 1,186,659.12, 1,637,507.97 and 663,335.94 is: 915,357.97
Step by Step Solution
- Step 1: Write the proportion equation
1,186,659.12 : 1,637,507.97 = 663,335.94 : x - Step 2: Convert to fraction form
1,186,659.12/1,637,507.97 = 663,335.94/x - Step 3: Cross multiply
1,186,659.12x = 1,637,507.97 × 663,335.94 - Step 4: Simplify right side
1,186,659.12x = 1,086,217,888,537.44 - Step 5: Solve for x
x = 1,086,217,888,537.44/1,186,659.12 - Step 6: Final answer
x = 915,357.97
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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.