Finding the Fourth Proportional to 1,515,885.16, 2,091,866.70 and 836,807.08
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Solution
The fourth proportional to 1,515,885.16, 2,091,866.70 and 836,807.08 is: 1,154,763.51
Step by Step Solution
- Step 1: Write the proportion equation
1,515,885.16 : 2,091,866.70 = 836,807.08 : x - Step 2: Convert to fraction form
1,515,885.16/2,091,866.70 = 836,807.08/x - Step 3: Cross multiply
1,515,885.16x = 2,091,866.70 × 836,807.08 - Step 4: Simplify right side
1,515,885.16x = 1,750,488,864,976.24 - Step 5: Solve for x
x = 1,750,488,864,976.24/1,515,885.16 - Step 6: Final answer
x = 1,154,763.51
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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.