Finding the Fourth Proportional to 1,135,988.11, 1,567,667.99 and 619,753.60
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Solution
The fourth proportional to 1,135,988.11, 1,567,667.99 and 619,753.60 is: 855,262.37
Step by Step Solution
- Step 1: Write the proportion equation
1,135,988.11 : 1,567,667.99 = 619,753.60 : x - Step 2: Convert to fraction form
1,135,988.11/1,567,667.99 = 619,753.60/x - Step 3: Cross multiply
1,135,988.11x = 1,567,667.99 × 619,753.60 - Step 4: Simplify right side
1,135,988.11x = 971,567,878,037.48 - Step 5: Solve for x
x = 971,567,878,037.48/1,135,988.11 - Step 6: Final answer
x = 855,262.37
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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.