Finding the Fourth Proportional to 1,090,125,047.70, 1,635,187,571.55 and 630,960,023.70
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Solution
The fourth proportional to 1,090,125,047.70, 1,635,187,571.55 and 630,960,023.70 is: 946,440,035.55
Step by Step Solution
- Step 1: Write the proportion equation
1,090,125,047.70 : 1,635,187,571.55 = 630,960,023.70 : x - Step 2: Convert to fraction form
1,090,125,047.70/1,635,187,571.55 = 630,960,023.70/x - Step 3: Cross multiply
1,090,125,047.70x = 1,635,187,571.55 × 630,960,023.70 - Step 4: Simplify right side
1,090,125,047.70x = 1,031,737,988,899,133,440 - Step 5: Solve for x
x = 1,031,737,988,899,133,440/1,090,125,047.70 - Step 6: Final answer
x = 946,440,035.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.