Finding the Fourth Proportional to 1,621,777.09, 2,238,099.10 and 896,671.62
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Solution
The fourth proportional to 1,621,777.09, 2,238,099.10 and 896,671.62 is: 1,237,432.67
Step by Step Solution
- Step 1: Write the proportion equation
1,621,777.09 : 2,238,099.10 = 896,671.62 : x - Step 2: Convert to fraction form
1,621,777.09/2,238,099.10 = 896,671.62/x - Step 3: Cross multiply
1,621,777.09x = 2,238,099.10 × 896,671.62 - Step 4: Simplify right side
1,621,777.09x = 2,006,839,948,519.64 - Step 5: Solve for x
x = 2,006,839,948,519.64/1,621,777.09 - Step 6: Final answer
x = 1,237,432.67
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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.