Finding the Fourth Proportional to 1,191,207.18, 1,643,881.92 and 647,353.74
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Solution
The fourth proportional to 1,191,207.18, 1,643,881.92 and 647,353.74 is: 893,356.86
Step by Step Solution
- Step 1: Write the proportion equation
1,191,207.18 : 1,643,881.92 = 647,353.74 : x - Step 2: Convert to fraction form
1,191,207.18/1,643,881.92 = 647,353.74/x - Step 3: Cross multiply
1,191,207.18x = 1,643,881.92 × 647,353.74 - Step 4: Simplify right side
1,191,207.18x = 1,064,173,109,030.38 - Step 5: Solve for x
x = 1,064,173,109,030.38/1,191,207.18 - Step 6: Final answer
x = 893,356.86
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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.