Finding the Fourth Proportional to 1,192,062.12, 1,645,655.25 and 919,518.18
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Solution
The fourth proportional to 1,192,062.12, 1,645,655.25 and 919,518.18 is: 1,269,405.26
Step by Step Solution
- Step 1: Write the proportion equation
1,192,062.12 : 1,645,655.25 = 919,518.18 : x - Step 2: Convert to fraction form
1,192,062.12/1,645,655.25 = 919,518.18/x - Step 3: Cross multiply
1,192,062.12x = 1,645,655.25 × 919,518.18 - Step 4: Simplify right side
1,192,062.12x = 1,513,209,920,387.45 - Step 5: Solve for x
x = 1,513,209,920,387.45/1,192,062.12 - Step 6: Final answer
x = 1,269,405.26
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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.