Finding the Fourth Proportional to 383,445.14, 529,130.18 and 211,353.62
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Solution
The fourth proportional to 383,445.14, 529,130.18 and 211,353.62 is: 291,654.70
Step by Step Solution
- Step 1: Write the proportion equation
383,445.14 : 529,130.18 = 211,353.62 : x - Step 2: Convert to fraction form
383,445.14/529,130.18 = 211,353.62/x - Step 3: Cross multiply
383,445.14x = 529,130.18 × 211,353.62 - Step 4: Simplify right side
383,445.14x = 111,833,575,291.83 - Step 5: Solve for x
x = 111,833,575,291.83/383,445.14 - Step 6: Final answer
x = 291,654.70
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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.