Finding the Fourth Proportional to 1,285,854.08, 1,929,937.49 and 687,326.85
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Solution
The fourth proportional to 1,285,854.08, 1,929,937.49 and 687,326.85 is: 1,031,608.39
Step by Step Solution
- Step 1: Write the proportion equation
1,285,854.08 : 1,929,937.49 = 687,326.85 : x - Step 2: Convert to fraction form
1,285,854.08/1,929,937.49 = 687,326.85/x - Step 3: Cross multiply
1,285,854.08x = 1,929,937.49 × 687,326.85 - Step 4: Simplify right side
1,285,854.08x = 1,326,497,852,261.97 - Step 5: Solve for x
x = 1,326,497,852,261.97/1,285,854.08 - Step 6: Final answer
x = 1,031,608.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.