Finding the Fourth Proportional to 1,913,204.66, 2,640,122.79 and 1,188,036.81
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Solution
The fourth proportional to 1,913,204.66, 2,640,122.79 and 1,188,036.81 is: 1,639,428.92
Step by Step Solution
- Step 1: Write the proportion equation
1,913,204.66 : 2,640,122.79 = 1,188,036.81 : x - Step 2: Convert to fraction form
1,913,204.66/2,640,122.79 = 1,188,036.81/x - Step 3: Cross multiply
1,913,204.66x = 2,640,122.79 × 1,188,036.81 - Step 4: Simplify right side
1,913,204.66x = 3,136,563,057,439.90 - Step 5: Solve for x
x = 3,136,563,057,439.90/1,913,204.66 - Step 6: Final answer
x = 1,639,428.92
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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.