Finding the Fourth Proportional to 837,834,429.67, 1,156,211,508.42 and 485,614,723.65
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Solution
The fourth proportional to 837,834,429.67, 1,156,211,508.42 and 485,614,723.65 is: 670,148,316.01
Step by Step Solution
- Step 1: Write the proportion equation
837,834,429.67 : 1,156,211,508.42 = 485,614,723.65 : x - Step 2: Convert to fraction form
837,834,429.67/1,156,211,508.42 = 485,614,723.65/x - Step 3: Cross multiply
837,834,429.67x = 1,156,211,508.42 × 485,614,723.65 - Step 4: Simplify right side
837,834,429.67x = 561,473,332,142,390,336 - Step 5: Solve for x
x = 561,473,332,142,390,336/837,834,429.67 - Step 6: Final answer
x = 670,148,316.01
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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.