Finding the Fourth Proportional to 1,918,753.76, 2,647,884.12 and 1,059,315.68
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Solution
The fourth proportional to 1,918,753.76, 2,647,884.12 and 1,059,315.68 is: 1,461,857.81
Step by Step Solution
- Step 1: Write the proportion equation
1,918,753.76 : 2,647,884.12 = 1,059,315.68 : x - Step 2: Convert to fraction form
1,918,753.76/2,647,884.12 = 1,059,315.68/x - Step 3: Cross multiply
1,918,753.76x = 2,647,884.12 × 1,059,315.68 - Step 4: Simplify right side
1,918,753.76x = 2,804,945,167,139.00 - Step 5: Solve for x
x = 2,804,945,167,139.00/1,918,753.76 - Step 6: Final answer
x = 1,461,857.81
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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.