Finding the Fourth Proportional to 1,621,898.40, 2,238,129.36 and 896,703.84
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Solution
The fourth proportional to 1,621,898.40, 2,238,129.36 and 896,703.84 is: 1,237,401.30
Step by Step Solution
- Step 1: Write the proportion equation
1,621,898.40 : 2,238,129.36 = 896,703.84 : x - Step 2: Convert to fraction form
1,621,898.40/2,238,129.36 = 896,703.84/x - Step 3: Cross multiply
1,621,898.40x = 2,238,129.36 × 896,703.84 - Step 4: Simplify right side
1,621,898.40x = 2,006,939,191,528.74 - Step 5: Solve for x
x = 2,006,939,191,528.74/1,621,898.40 - Step 6: Final answer
x = 1,237,401.30
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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.