Finding the Fourth Proportional to 1,858,357.12, 2,787,536.16 and 528,661.12
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Solution
The fourth proportional to 1,858,357.12, 2,787,536.16 and 528,661.12 is: 792,991.82
Step by Step Solution
- Step 1: Write the proportion equation
1,858,357.12 : 2,787,536.16 = 528,661.12 : x - Step 2: Convert to fraction form
1,858,357.12/2,787,536.16 = 528,661.12/x - Step 3: Cross multiply
1,858,357.12x = 2,787,536.16 × 528,661.12 - Step 4: Simplify right side
1,858,357.12x = 1,473,661,988,386.10 - Step 5: Solve for x
x = 1,473,661,988,386.10/1,858,357.12 - Step 6: Final answer
x = 792,991.82
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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.