Finding the Fourth Proportional to 1,490,103.12, 2,056,347.36 and 811,038
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Solution
The fourth proportional to 1,490,103.12, 2,056,347.36 and 811,038 is: 1,119,235.19
Step by Step Solution
- Step 1: Write the proportion equation
1,490,103.12 : 2,056,347.36 = 811,038 : x - Step 2: Convert to fraction form
1,490,103.12/2,056,347.36 = 811,038/x - Step 3: Cross multiply
1,490,103.12x = 2,056,347.36 × 811,038 - Step 4: Simplify right side
1,490,103.12x = 1,667,775,850,159.68 - Step 5: Solve for x
x = 1,667,775,850,159.68/1,490,103.12 - Step 6: Final answer
x = 1,119,235.19
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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.