Finding the Fourth Proportional to 1,918,555.92, 2,877,158.24 and 638,815.84
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Solution
The fourth proportional to 1,918,555.92, 2,877,158.24 and 638,815.84 is: 957,998.79
Step by Step Solution
- Step 1: Write the proportion equation
1,918,555.92 : 2,877,158.24 = 638,815.84 : x - Step 2: Convert to fraction form
1,918,555.92/2,877,158.24 = 638,815.84/x - Step 3: Cross multiply
1,918,555.92x = 2,877,158.24 × 638,815.84 - Step 4: Simplify right side
1,918,555.92x = 1,837,974,257,898.52 - Step 5: Solve for x
x = 1,837,974,257,898.52/1,918,555.92 - Step 6: Final answer
x = 957,998.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.