Finding the Fourth Proportional to 1,291,617.74, 1,936,461.49 and 891,115.67
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Solution
The fourth proportional to 1,291,617.74, 1,936,461.49 and 891,115.67 is: 1,336,007.65
Step by Step Solution
- Step 1: Write the proportion equation
1,291,617.74 : 1,936,461.49 = 891,115.67 : x - Step 2: Convert to fraction form
1,291,617.74/1,936,461.49 = 891,115.67/x - Step 3: Cross multiply
1,291,617.74x = 1,936,461.49 × 891,115.67 - Step 4: Simplify right side
1,291,617.74x = 1,725,611,178,090.55 - Step 5: Solve for x
x = 1,725,611,178,090.55/1,291,617.74 - Step 6: Final answer
x = 1,336,007.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.