Finding the Fourth Proportional to 1,368,711.28, 1,888,744.68 and 756,828.40
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Solution
The fourth proportional to 1,368,711.28, 1,888,744.68 and 756,828.40 is: 1,044,380.68
Step by Step Solution
- Step 1: Write the proportion equation
1,368,711.28 : 1,888,744.68 = 756,828.40 : x - Step 2: Convert to fraction form
1,368,711.28/1,888,744.68 = 756,828.40/x - Step 3: Cross multiply
1,368,711.28x = 1,888,744.68 × 756,828.40 - Step 4: Simplify right side
1,368,711.28x = 1,429,455,614,172.91 - Step 5: Solve for x
x = 1,429,455,614,172.91/1,368,711.28 - Step 6: Final answer
x = 1,044,380.68
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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.