Finding the Fourth Proportional to 1,918,930.20, 2,877,617.70 and 656,107.80
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Solution
The fourth proportional to 1,918,930.20, 2,877,617.70 and 656,107.80 is: 983,895.83
Step by Step Solution
- Step 1: Write the proportion equation
1,918,930.20 : 2,877,617.70 = 656,107.80 : x - Step 2: Convert to fraction form
1,918,930.20/2,877,617.70 = 656,107.80/x - Step 3: Cross multiply
1,918,930.20x = 2,877,617.70 × 656,107.80 - Step 4: Simplify right side
1,918,930.20x = 1,888,027,418,388.06 - Step 5: Solve for x
x = 1,888,027,418,388.06/1,918,930.20 - Step 6: Final answer
x = 983,895.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.