Finding the Fourth Proportional to 1,686,586.05, 2,327,543.91 and 961,420.59
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Solution
The fourth proportional to 1,686,586.05, 2,327,543.91 and 961,420.59 is: 1,326,791.86
Step by Step Solution
- Step 1: Write the proportion equation
1,686,586.05 : 2,327,543.91 = 961,420.59 : x - Step 2: Convert to fraction form
1,686,586.05/2,327,543.91 = 961,420.59/x - Step 3: Cross multiply
1,686,586.05x = 2,327,543.91 × 961,420.59 - Step 4: Simplify right side
1,686,586.05x = 2,237,748,639,203.11 - Step 5: Solve for x
x = 2,237,748,639,203.11/1,686,586.05 - Step 6: Final answer
x = 1,326,791.86
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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.