Finding the Fourth Proportional to 541,221.19, 811,815.01 and 257,116.19
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Solution
The fourth proportional to 541,221.19, 811,815.01 and 257,116.19 is: 385,666.31
Step by Step Solution
- Step 1: Write the proportion equation
541,221.19 : 811,815.01 = 257,116.19 : x - Step 2: Convert to fraction form
541,221.19/811,815.01 = 257,116.19/x - Step 3: Cross multiply
541,221.19x = 811,815.01 × 257,116.19 - Step 4: Simplify right side
541,221.19x = 208,730,777,654.15 - Step 5: Solve for x
x = 208,730,777,654.15/541,221.19 - Step 6: Final answer
x = 385,666.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.