Finding the Fourth Proportional to 1,115,841.12, 1,540,602.27 and 857,257.53
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Solution
The fourth proportional to 1,115,841.12, 1,540,602.27 and 857,257.53 is: 1,183,585.08
Step by Step Solution
- Step 1: Write the proportion equation
1,115,841.12 : 1,540,602.27 = 857,257.53 : x - Step 2: Convert to fraction form
1,115,841.12/1,540,602.27 = 857,257.53/x - Step 3: Cross multiply
1,115,841.12x = 1,540,602.27 × 857,257.53 - Step 4: Simplify right side
1,115,841.12x = 1,320,692,896,692.59 - Step 5: Solve for x
x = 1,320,692,896,692.59/1,115,841.12 - Step 6: Final answer
x = 1,183,585.08
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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.