Finding the Fourth Proportional to 1,251,536.09, 1,727,109.41 and 707,778.63
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Solution
The fourth proportional to 1,251,536.09, 1,727,109.41 and 707,778.63 is: 976,728.63
Step by Step Solution
- Step 1: Write the proportion equation
1,251,536.09 : 1,727,109.41 = 707,778.63 : x - Step 2: Convert to fraction form
1,251,536.09/1,727,109.41 = 707,778.63/x - Step 3: Cross multiply
1,251,536.09x = 1,727,109.41 × 707,778.63 - Step 4: Simplify right side
1,251,536.09x = 1,222,411,128,531.02 - Step 5: Solve for x
x = 1,222,411,128,531.02/1,251,536.09 - Step 6: Final answer
x = 976,728.63
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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.