Finding the Fourth Proportional to 1,220,206.93, 1,683,882.66 and 668,921.67
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Solution
The fourth proportional to 1,220,206.93, 1,683,882.66 and 668,921.67 is: 923,110.31
Step by Step Solution
- Step 1: Write the proportion equation
1,220,206.93 : 1,683,882.66 = 668,921.67 : x - Step 2: Convert to fraction form
1,220,206.93/1,683,882.66 = 668,921.67/x - Step 3: Cross multiply
1,220,206.93x = 1,683,882.66 × 668,921.67 - Step 4: Simplify right side
1,220,206.93x = 1,126,385,601,011.24 - Step 5: Solve for x
x = 1,126,385,601,011.24/1,220,206.93 - Step 6: Final answer
x = 923,110.31
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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.