Finding the Fourth Proportional to 1,778,608.18, 2,667,918.57 and 430,771.69
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Solution
The fourth proportional to 1,778,608.18, 2,667,918.57 and 430,771.69 is: 646,159.06
Step by Step Solution
- Step 1: Write the proportion equation
1,778,608.18 : 2,667,918.57 = 430,771.69 : x - Step 2: Convert to fraction form
1,778,608.18/2,667,918.57 = 430,771.69/x - Step 3: Cross multiply
1,778,608.18x = 2,667,918.57 × 430,771.69 - Step 4: Simplify right side
1,778,608.18x = 1,149,263,791,181.28 - Step 5: Solve for x
x = 1,149,263,791,181.28/1,778,608.18 - Step 6: Final answer
x = 646,159.06
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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.