Finding the Fourth Proportional to 1,926,539.84, 2,657,911.20 and 1,247,850.56
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Solution
The fourth proportional to 1,926,539.84, 2,657,911.20 and 1,247,850.56 is: 1,721,571.45
Step by Step Solution
- Step 1: Write the proportion equation
1,926,539.84 : 2,657,911.20 = 1,247,850.56 : x - Step 2: Convert to fraction form
1,926,539.84/2,657,911.20 = 1,247,850.56/x - Step 3: Cross multiply
1,926,539.84x = 2,657,911.20 × 1,247,850.56 - Step 4: Simplify right side
1,926,539.84x = 3,316,675,979,350.27 - Step 5: Solve for x
x = 3,316,675,979,350.27/1,926,539.84 - Step 6: Final answer
x = 1,721,571.45
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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.