Finding the Fourth Proportional to 1,009,107,203.70, 1,513,660,805.55 and 737,009,411.70
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Solution
The fourth proportional to 1,009,107,203.70, 1,513,660,805.55 and 737,009,411.70 is: 1,105,514,117.55
Step by Step Solution
- Step 1: Write the proportion equation
1,009,107,203.70 : 1,513,660,805.55 = 737,009,411.70 : x - Step 2: Convert to fraction form
1,009,107,203.70/1,513,660,805.55 = 737,009,411.70/x - Step 3: Cross multiply
1,009,107,203.70x = 1,513,660,805.55 × 737,009,411.70 - Step 4: Simplify right side
1,009,107,203.70x = 1,115,582,259,811,753,600 - Step 5: Solve for x
x = 1,115,582,259,811,753,600/1,009,107,203.70 - Step 6: Final answer
x = 1,105,514,117.55
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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.