Finding the Fourth Proportional to 403,186.56, 556,166.01 and 252,021.12
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Solution
The fourth proportional to 403,186.56, 556,166.01 and 252,021.12 is: 347,644.48
Step by Step Solution
- Step 1: Write the proportion equation
403,186.56 : 556,166.01 = 252,021.12 : x - Step 2: Convert to fraction form
403,186.56/556,166.01 = 252,021.12/x - Step 3: Cross multiply
403,186.56x = 556,166.01 × 252,021.12 - Step 4: Simplify right side
403,186.56x = 140,165,580,746.13 - Step 5: Solve for x
x = 140,165,580,746.13/403,186.56 - Step 6: Final answer
x = 347,644.48
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1.5x scale
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.