Finding the Fourth Proportional to 4,680,882.12, 6,459,641.20 and 2,615,932.18
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Solution
The fourth proportional to 4,680,882.12, 6,459,641.20 and 2,615,932.18 is: 3,609,999.75
Step by Step Solution
- Step 1: Write the proportion equation
4,680,882.12 : 6,459,641.20 = 2,615,932.18 : x - Step 2: Convert to fraction form
4,680,882.12/6,459,641.20 = 2,615,932.18/x - Step 3: Cross multiply
4,680,882.12x = 6,459,641.20 × 2,615,932.18 - Step 4: Simplify right side
4,680,882.12x = 16,897,983,286,333.82 - Step 5: Solve for x
x = 16,897,983,286,333.82/4,680,882.12 - Step 6: Final answer
x = 3,609,999.75
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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.