Finding the Fourth Proportional to 991,347.08, 1,368,054.18 and 561,626.19
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Solution
The fourth proportional to 991,347.08, 1,368,054.18 and 561,626.19 is: 775,041.43
Step by Step Solution
- Step 1: Write the proportion equation
991,347.08 : 1,368,054.18 = 561,626.19 : x - Step 2: Convert to fraction form
991,347.08/1,368,054.18 = 561,626.19/x - Step 3: Cross multiply
991,347.08x = 1,368,054.18 × 561,626.19 - Step 4: Simplify right side
991,347.08x = 768,335,056,826.97 - Step 5: Solve for x
x = 768,335,056,826.97/991,347.08 - Step 6: Final answer
x = 775,041.43
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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.