Finding the Fourth Proportional to 1,457,609.28, 2,011,511.84 and 813,071.68
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Solution
The fourth proportional to 1,457,609.28, 2,011,511.84 and 813,071.68 is: 1,122,045.07
Step by Step Solution
- Step 1: Write the proportion equation
1,457,609.28 : 2,011,511.84 = 813,071.68 : x - Step 2: Convert to fraction form
1,457,609.28/2,011,511.84 = 813,071.68/x - Step 3: Cross multiply
1,457,609.28x = 2,011,511.84 × 813,071.68 - Step 4: Simplify right side
1,457,609.28x = 1,635,503,311,088.69 - Step 5: Solve for x
x = 1,635,503,311,088.69/1,457,609.28 - Step 6: Final answer
x = 1,122,045.07
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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.