Finding the Fourth Proportional to 1,557,735.80, 2,336,430.90 and 435,918.20
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Solution
The fourth proportional to 1,557,735.80, 2,336,430.90 and 435,918.20 is: 653,828.94
Step by Step Solution
- Step 1: Write the proportion equation
1,557,735.80 : 2,336,430.90 = 435,918.20 : x - Step 2: Convert to fraction form
1,557,735.80/2,336,430.90 = 435,918.20/x - Step 3: Cross multiply
1,557,735.80x = 2,336,430.90 × 435,918.20 - Step 4: Simplify right side
1,557,735.80x = 1,018,492,752,352.38 - Step 5: Solve for x
x = 1,018,492,752,352.38/1,557,735.80 - Step 6: Final answer
x = 653,828.94
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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.