Finding the Fourth Proportional to 500,901.21, 691,271.96 and 297,072.81
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Solution
The fourth proportional to 500,901.21, 691,271.96 and 297,072.81 is: 409,977.25
Step by Step Solution
- Step 1: Write the proportion equation
500,901.21 : 691,271.96 = 297,072.81 : x - Step 2: Convert to fraction form
500,901.21/691,271.96 = 297,072.81/x - Step 3: Cross multiply
500,901.21x = 691,271.96 × 297,072.81 - Step 4: Simplify right side
500,901.21x = 205,358,102,146.04 - Step 5: Solve for x
x = 205,358,102,146.04/500,901.21 - Step 6: Final answer
x = 409,977.25
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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.