Finding the Fourth Proportional to 1,525,529.91, 2,105,092.11 and 905,228.19
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Solution
The fourth proportional to 1,525,529.91, 2,105,092.11 and 905,228.19 is: 1,249,132.32
Step by Step Solution
- Step 1: Write the proportion equation
1,525,529.91 : 2,105,092.11 = 905,228.19 : x - Step 2: Convert to fraction form
1,525,529.91/2,105,092.11 = 905,228.19/x - Step 3: Cross multiply
1,525,529.91x = 2,105,092.11 × 905,228.19 - Step 4: Simplify right side
1,525,529.91x = 1,905,588,720,518.58 - Step 5: Solve for x
x = 1,905,588,720,518.58/1,525,529.91 - Step 6: Final answer
x = 1,249,132.32
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1.5x scale
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.