Finding the Fourth Proportional to 1,128,203.99, 1,556,913.80 and 611,955.81
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Solution
The fourth proportional to 1,128,203.99, 1,556,913.80 and 611,955.81 is: 844,494.83
Step by Step Solution
- Step 1: Write the proportion equation
1,128,203.99 : 1,556,913.80 = 611,955.81 : x - Step 2: Convert to fraction form
1,128,203.99/1,556,913.80 = 611,955.81/x - Step 3: Cross multiply
1,128,203.99x = 1,556,913.80 × 611,955.81 - Step 4: Simplify right side
1,128,203.99x = 952,762,440,157.00 - Step 5: Solve for x
x = 952,762,440,157.00/1,128,203.99 - Step 6: Final answer
x = 844,494.83
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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.