Finding the Fourth Proportional to 1,530,412.19, 2,112,199.77 and 886,253.21
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Solution
The fourth proportional to 1,530,412.19, 2,112,199.77 and 886,253.21 is: 1,223,163.17
Step by Step Solution
- Step 1: Write the proportion equation
1,530,412.19 : 2,112,199.77 = 886,253.21 : x - Step 2: Convert to fraction form
1,530,412.19/2,112,199.77 = 886,253.21/x - Step 3: Cross multiply
1,530,412.19x = 2,112,199.77 × 886,253.21 - Step 4: Simplify right side
1,530,412.19x = 1,871,943,815,762.76 - Step 5: Solve for x
x = 1,871,943,815,762.76/1,530,412.19 - Step 6: Final answer
x = 1,223,163.17
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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.