Finding the Fourth Proportional to 585,437.81, 807,608.21 and 391,853.75
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Solution
The fourth proportional to 585,437.81, 807,608.21 and 391,853.75 is: 540,560.07
Step by Step Solution
- Step 1: Write the proportion equation
585,437.81 : 807,608.21 = 391,853.75 : x - Step 2: Convert to fraction form
585,437.81/807,608.21 = 391,853.75/x - Step 3: Cross multiply
585,437.81x = 807,608.21 × 391,853.75 - Step 4: Simplify right side
585,437.81x = 316,464,299,621.98 - Step 5: Solve for x
x = 316,464,299,621.98/585,437.81 - Step 6: Final answer
x = 540,560.07
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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.