Finding the Fourth Proportional to 1,187,836.71, 1,640,567.87 and 805,199.19
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Solution
The fourth proportional to 1,187,836.71, 1,640,567.87 and 805,199.19 is: 1,112,092.18
Step by Step Solution
- Step 1: Write the proportion equation
1,187,836.71 : 1,640,567.87 = 805,199.19 : x - Step 2: Convert to fraction form
1,187,836.71/1,640,567.87 = 805,199.19/x - Step 3: Cross multiply
1,187,836.71x = 1,640,567.87 × 805,199.19 - Step 4: Simplify right side
1,187,836.71x = 1,320,983,916,038.03 - Step 5: Solve for x
x = 1,320,983,916,038.03/1,187,836.71 - Step 6: Final answer
x = 1,112,092.18
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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.