Finding the Fourth Proportional to 910,128.01, 1,256,226.50 and 528,277.81
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Solution
The fourth proportional to 910,128.01, 1,256,226.50 and 528,277.81 is: 729,168.40
Step by Step Solution
- Step 1: Write the proportion equation
910,128.01 : 1,256,226.50 = 528,277.81 : x - Step 2: Convert to fraction form
910,128.01/1,256,226.50 = 528,277.81/x - Step 3: Cross multiply
910,128.01x = 1,256,226.50 × 528,277.81 - Step 4: Simplify right side
910,128.01x = 663,636,581,642.58 - Step 5: Solve for x
x = 663,636,581,642.58/910,128.01 - Step 6: Final answer
x = 729,168.40
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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.