Finding the Fourth Proportional to 1,130,778.81, 1,560,479.81 and 621,513.99
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Solution
The fourth proportional to 1,130,778.81, 1,560,479.81 and 621,513.99 is: 857,692.08
Step by Step Solution
- Step 1: Write the proportion equation
1,130,778.81 : 1,560,479.81 = 621,513.99 : x - Step 2: Convert to fraction form
1,130,778.81/1,560,479.81 = 621,513.99/x - Step 3: Cross multiply
1,130,778.81x = 1,560,479.81 × 621,513.99 - Step 4: Simplify right side
1,130,778.81x = 969,860,033,027.54 - Step 5: Solve for x
x = 969,860,033,027.54/1,130,778.81 - Step 6: Final answer
x = 857,692.08
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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.