Finding the Fourth Proportional to 1,107,217.79, 1,527,953.59 and 623,938.18
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Solution
The fourth proportional to 1,107,217.79, 1,527,953.59 and 623,938.18 is: 861,030.76
Step by Step Solution
- Step 1: Write the proportion equation
1,107,217.79 : 1,527,953.59 = 623,938.18 : x - Step 2: Convert to fraction form
1,107,217.79/1,527,953.59 = 623,938.18/x - Step 3: Cross multiply
1,107,217.79x = 1,527,953.59 × 623,938.18 - Step 4: Simplify right side
1,107,217.79x = 953,348,571,309.61 - Step 5: Solve for x
x = 953,348,571,309.61/1,107,217.79 - Step 6: Final answer
x = 861,030.76
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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.