Finding the Fourth Proportional to 957,186.06, 1,320,899.74 and 521,607.21
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Solution
The fourth proportional to 957,186.06, 1,320,899.74 and 521,607.21 is: 719,808.67
Step by Step Solution
- Step 1: Write the proportion equation
957,186.06 : 1,320,899.74 = 521,607.21 : x - Step 2: Convert to fraction form
957,186.06/1,320,899.74 = 521,607.21/x - Step 3: Cross multiply
957,186.06x = 1,320,899.74 × 521,607.21 - Step 4: Simplify right side
957,186.06x = 688,990,828,071.13 - Step 5: Solve for x
x = 688,990,828,071.13/957,186.06 - Step 6: Final answer
x = 719,808.67
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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.