Finding the Fourth Proportional to 1,401,181.12, 1,934,487.14 and 911,615.68
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Solution
The fourth proportional to 1,401,181.12, 1,934,487.14 and 911,615.68 is: 1,258,587.33
Step by Step Solution
- Step 1: Write the proportion equation
1,401,181.12 : 1,934,487.14 = 911,615.68 : x - Step 2: Convert to fraction form
1,401,181.12/1,934,487.14 = 911,615.68/x - Step 3: Cross multiply
1,401,181.12x = 1,934,487.14 × 911,615.68 - Step 4: Simplify right side
1,401,181.12x = 1,763,508,809,582.36 - Step 5: Solve for x
x = 1,763,508,809,582.36/1,401,181.12 - Step 6: Final answer
x = 1,258,587.33
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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.