Finding the Fourth Proportional to 728,431.38, 1,092,746.70 and 248,530.50
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Solution
The fourth proportional to 728,431.38, 1,092,746.70 and 248,530.50 is: 372,829.74
Step by Step Solution
- Step 1: Write the proportion equation
728,431.38 : 1,092,746.70 = 248,530.50 : x - Step 2: Convert to fraction form
728,431.38/1,092,746.70 = 248,530.50/x - Step 3: Cross multiply
728,431.38x = 1,092,746.70 × 248,530.50 - Step 4: Simplify right side
728,431.38x = 271,580,883,724.35 - Step 5: Solve for x
x = 271,580,883,724.35/728,431.38 - Step 6: Final answer
x = 372,829.74
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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.