Finding the Fourth Proportional to 944,786,117.70, 1,417,179,176.55 and 715,203,605.70
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Solution
The fourth proportional to 944,786,117.70, 1,417,179,176.55 and 715,203,605.70 is: 1,072,805,408.55
Step by Step Solution
- Step 1: Write the proportion equation
944,786,117.70 : 1,417,179,176.55 = 715,203,605.70 : x - Step 2: Convert to fraction form
944,786,117.70/1,417,179,176.55 = 715,203,605.70/x - Step 3: Cross multiply
944,786,117.70x = 1,417,179,176.55 × 715,203,605.70 - Step 4: Simplify right side
944,786,117.70x = 1,013,571,656,991,516,928 - Step 5: Solve for x
x = 1,013,571,656,991,516,928/944,786,117.70 - Step 6: Final answer
x = 1,072,805,408.55
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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.