Finding the Fourth Proportional to 638,848.60, 881,609.19 and 366,934.03
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Solution
The fourth proportional to 638,848.60, 881,609.19 and 366,934.03 is: 506,367.88
Step by Step Solution
- Step 1: Write the proportion equation
638,848.60 : 881,609.19 = 366,934.03 : x - Step 2: Convert to fraction form
638,848.60/881,609.19 = 366,934.03/x - Step 3: Cross multiply
638,848.60x = 881,609.19 × 366,934.03 - Step 4: Simplify right side
638,848.60x = 323,492,412,971.74 - Step 5: Solve for x
x = 323,492,412,971.74/638,848.60 - Step 6: Final answer
x = 506,367.88
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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.