Finding the Fourth Proportional to 1,979,554.21, 2,730,376.05 and 1,816,736.58
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Solution
The fourth proportional to 1,979,554.21, 2,730,376.05 and 1,816,736.58 is: 2,505,803.59
Step by Step Solution
- Step 1: Write the proportion equation
1,979,554.21 : 2,730,376.05 = 1,816,736.58 : x - Step 2: Convert to fraction form
1,979,554.21/2,730,376.05 = 1,816,736.58/x - Step 3: Cross multiply
1,979,554.21x = 2,730,376.05 × 1,816,736.58 - Step 4: Simplify right side
1,979,554.21x = 4,960,374,047,190.91 - Step 5: Solve for x
x = 4,960,374,047,190.91/1,979,554.21 - Step 6: Final answer
x = 2,505,803.59
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.