Finding the Fourth Proportional to 1,291,941.08, 1,782,865.68 and 718,971.56
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Solution
The fourth proportional to 1,291,941.08, 1,782,865.68 and 718,971.56 is: 992,173.51
Step by Step Solution
- Step 1: Write the proportion equation
1,291,941.08 : 1,782,865.68 = 718,971.56 : x - Step 2: Convert to fraction form
1,291,941.08/1,782,865.68 = 718,971.56/x - Step 3: Cross multiply
1,291,941.08x = 1,782,865.68 × 718,971.56 - Step 4: Simplify right side
1,291,941.08x = 1,281,829,719,220.06 - Step 5: Solve for x
x = 1,281,829,719,220.06/1,291,941.08 - Step 6: Final answer
x = 992,173.51
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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.