Finding the Fourth Proportional to 541,664.42, 747,433.29 and 312,219.07
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Solution
The fourth proportional to 541,664.42, 747,433.29 and 312,219.07 is: 430,825.65
Step by Step Solution
- Step 1: Write the proportion equation
541,664.42 : 747,433.29 = 312,219.07 : x - Step 2: Convert to fraction form
541,664.42/747,433.29 = 312,219.07/x - Step 3: Cross multiply
541,664.42x = 747,433.29 × 312,219.07 - Step 4: Simplify right side
541,664.42x = 233,362,925,993.08 - Step 5: Solve for x
x = 233,362,925,993.08/541,664.42 - Step 6: Final answer
x = 430,825.65
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1.5x scale
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.