Finding the Fourth Proportional to 1,622,785.39, 2,238,740.17 and 977,839.09
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Solution
The fourth proportional to 1,622,785.39, 2,238,740.17 and 977,839.09 is: 1,348,993.93
Step by Step Solution
- Step 1: Write the proportion equation
1,622,785.39 : 2,238,740.17 = 977,839.09 : x - Step 2: Convert to fraction form
1,622,785.39/2,238,740.17 = 977,839.09/x - Step 3: Cross multiply
1,622,785.39x = 2,238,740.17 × 977,839.09 - Step 4: Simplify right side
1,622,785.39x = 2,189,127,642,537.80 - Step 5: Solve for x
x = 2,189,127,642,537.80/1,622,785.39 - Step 6: Final answer
x = 1,348,993.93
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1.5x scale
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.