Finding the Fourth Proportional to 1,398,170.58, 1,929,457.06 and 786,323.17
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Solution
The fourth proportional to 1,398,170.58, 1,929,457.06 and 786,323.17 is: 1,085,115.66
Step by Step Solution
- Step 1: Write the proportion equation
1,398,170.58 : 1,929,457.06 = 786,323.17 : x - Step 2: Convert to fraction form
1,398,170.58/1,929,457.06 = 786,323.17/x - Step 3: Cross multiply
1,398,170.58x = 1,929,457.06 × 786,323.17 - Step 4: Simplify right side
1,398,170.58x = 1,517,176,791,798.08 - Step 5: Solve for x
x = 1,517,176,791,798.08/1,398,170.58 - Step 6: Final answer
x = 1,085,115.66
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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.