Finding the Fourth Proportional to 944,785,205.70, 1,417,177,808.55 and 715,202,693.70
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Solution
The fourth proportional to 944,785,205.70, 1,417,177,808.55 and 715,202,693.70 is: 1,072,804,040.55
Step by Step Solution
- Step 1: Write the proportion equation
944,785,205.70 : 1,417,177,808.55 = 715,202,693.70 : x - Step 2: Convert to fraction form
944,785,205.70/1,417,177,808.55 = 715,202,693.70/x - Step 3: Cross multiply
944,785,205.70x = 1,417,177,808.55 × 715,202,693.70 - Step 4: Simplify right side
944,785,205.70x = 1,013,569,386,126,822,912 - Step 5: Solve for x
x = 1,013,569,386,126,822,912/944,785,205.70 - Step 6: Final answer
x = 1,072,804,040.55
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Double scale
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Similar ratio
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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.