Finding the Fourth Proportional to 292,983.39, 439,487.84 and 143,349.66
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Solution
The fourth proportional to 292,983.39, 439,487.84 and 143,349.66 is: 215,030.73
Step by Step Solution
- Step 1: Write the proportion equation
292,983.39 : 439,487.84 = 143,349.66 : x - Step 2: Convert to fraction form
292,983.39/439,487.84 = 143,349.66/x - Step 3: Cross multiply
292,983.39x = 439,487.84 × 143,349.66 - Step 4: Simplify right side
292,983.39x = 63,000,432,796.51 - Step 5: Solve for x
x = 63,000,432,796.51/292,983.39 - Step 6: Final answer
x = 215,030.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.