Finding the Fourth Proportional to 343,779.09, 474,416.80 and 190,819.40
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Solution
The fourth proportional to 343,779.09, 474,416.80 and 190,819.40 is: 263,331.69
Step by Step Solution
- Step 1: Write the proportion equation
343,779.09 : 474,416.80 = 190,819.40 : x - Step 2: Convert to fraction form
343,779.09/474,416.80 = 190,819.40/x - Step 3: Cross multiply
343,779.09x = 474,416.80 × 190,819.40 - Step 4: Simplify right side
343,779.09x = 90,527,926,276.79 - Step 5: Solve for x
x = 90,527,926,276.79/343,779.09 - Step 6: Final answer
x = 263,331.69
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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.