Finding the Fourth Proportional to 1,154,771.49, 1,593,445.58 and 638,455.66
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Solution
The fourth proportional to 1,154,771.49, 1,593,445.58 and 638,455.66 is: 880,991.92
Step by Step Solution
- Step 1: Write the proportion equation
1,154,771.49 : 1,593,445.58 = 638,455.66 : x - Step 2: Convert to fraction form
1,154,771.49/1,593,445.58 = 638,455.66/x - Step 3: Cross multiply
1,154,771.49x = 1,593,445.58 × 638,455.66 - Step 4: Simplify right side
1,154,771.49x = 1,017,344,349,452.98 - Step 5: Solve for x
x = 1,017,344,349,452.98/1,154,771.49 - Step 6: Final answer
x = 880,991.92
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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.