Finding the Fourth Proportional to 808,991.40, 1,116,630.18 and 469,569
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Solution
The fourth proportional to 808,991.40, 1,116,630.18 and 469,569 is: 648,134.11
Step by Step Solution
- Step 1: Write the proportion equation
808,991.40 : 1,116,630.18 = 469,569 : x - Step 2: Convert to fraction form
808,991.40/1,116,630.18 = 469,569/x - Step 3: Cross multiply
808,991.40x = 1,116,630.18 × 469,569 - Step 4: Simplify right side
808,991.40x = 524,334,916,992.42 - Step 5: Solve for x
x = 524,334,916,992.42/808,991.40 - Step 6: Final answer
x = 648,134.11
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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.