Finding the Fourth Proportional to 1,928,464.40, 2,661,266.14 and 1,057,288.75
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Solution
The fourth proportional to 1,928,464.40, 2,661,266.14 and 1,057,288.75 is: 1,459,050.39
Step by Step Solution
- Step 1: Write the proportion equation
1,928,464.40 : 2,661,266.14 = 1,057,288.75 : x - Step 2: Convert to fraction form
1,928,464.40/2,661,266.14 = 1,057,288.75/x - Step 3: Cross multiply
1,928,464.40x = 2,661,266.14 × 1,057,288.75 - Step 4: Simplify right side
1,928,464.40x = 2,813,726,741,281.54 - Step 5: Solve for x
x = 2,813,726,741,281.54/1,928,464.40 - Step 6: Final answer
x = 1,459,050.39
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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.