Finding the Fourth Proportional to 935,912.68, 1,291,559.70 and 528,101.08
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Solution
The fourth proportional to 935,912.68, 1,291,559.70 and 528,101.08 is: 728,779.60
Step by Step Solution
- Step 1: Write the proportion equation
935,912.68 : 1,291,559.70 = 528,101.08 : x - Step 2: Convert to fraction form
935,912.68/1,291,559.70 = 528,101.08/x - Step 3: Cross multiply
935,912.68x = 1,291,559.70 × 528,101.08 - Step 4: Simplify right side
935,912.68x = 682,074,072,454.48 - Step 5: Solve for x
x = 682,074,072,454.48/935,912.68 - Step 6: Final answer
x = 728,779.60
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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.