Finding the Fourth Proportional to 1,115,691.76, 1,539,700.41 and 632,251.77
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Solution
The fourth proportional to 1,115,691.76, 1,539,700.41 and 632,251.77 is: 872,533.39
Step by Step Solution
- Step 1: Write the proportion equation
1,115,691.76 : 1,539,700.41 = 632,251.77 : x - Step 2: Convert to fraction form
1,115,691.76/1,539,700.41 = 632,251.77/x - Step 3: Cross multiply
1,115,691.76x = 1,539,700.41 × 632,251.77 - Step 4: Simplify right side
1,115,691.76x = 973,478,309,492.23 - Step 5: Solve for x
x = 973,478,309,492.23/1,115,691.76 - Step 6: Final answer
x = 872,533.39
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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.