Finding the Fourth Proportional to 1,128,896.08, 1,557,874.32 and 619,587.52
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Solution
The fourth proportional to 1,128,896.08, 1,557,874.32 and 619,587.52 is: 855,029.53
Step by Step Solution
- Step 1: Write the proportion equation
1,128,896.08 : 1,557,874.32 = 619,587.52 : x - Step 2: Convert to fraction form
1,128,896.08/1,557,874.32 = 619,587.52/x - Step 3: Cross multiply
1,128,896.08x = 1,557,874.32 × 619,587.52 - Step 4: Simplify right side
1,128,896.08x = 965,239,486,400.49 - Step 5: Solve for x
x = 965,239,486,400.49/1,128,896.08 - Step 6: Final answer
x = 855,029.53
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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.