Finding the Fourth Proportional to 1,245,176.70, 1,867,765.05 and 403,728.45
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Solution
The fourth proportional to 1,245,176.70, 1,867,765.05 and 403,728.45 is: 605,592.68
Step by Step Solution
- Step 1: Write the proportion equation
1,245,176.70 : 1,867,765.05 = 403,728.45 : x - Step 2: Convert to fraction form
1,245,176.70/1,867,765.05 = 403,728.45/x - Step 3: Cross multiply
1,245,176.70x = 1,867,765.05 × 403,728.45 - Step 4: Simplify right side
1,245,176.70x = 754,069,888,600.67 - Step 5: Solve for x
x = 754,069,888,600.67/1,245,176.70 - Step 6: Final answer
x = 605,592.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.