Finding the Fourth Proportional to 1,189,159.14, 1,640,572.47 and 679,588.14
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Solution
The fourth proportional to 1,189,159.14, 1,640,572.47 and 679,588.14 is: 937,564.67
Step by Step Solution
- Step 1: Write the proportion equation
1,189,159.14 : 1,640,572.47 = 679,588.14 : x - Step 2: Convert to fraction form
1,189,159.14/1,640,572.47 = 679,588.14/x - Step 3: Cross multiply
1,189,159.14x = 1,640,572.47 × 679,588.14 - Step 4: Simplify right side
1,189,159.14x = 1,114,913,593,422.51 - Step 5: Solve for x
x = 1,114,913,593,422.51/1,189,159.14 - Step 6: Final answer
x = 937,564.67
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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.