Finding the Fourth Proportional to 1,556,851.68, 2,148,455.61 and 877,788.18
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Solution
The fourth proportional to 1,556,851.68, 2,148,455.61 and 877,788.18 is: 1,211,347.85
Step by Step Solution
- Step 1: Write the proportion equation
1,556,851.68 : 2,148,455.61 = 877,788.18 : x - Step 2: Convert to fraction form
1,556,851.68/2,148,455.61 = 877,788.18/x - Step 3: Cross multiply
1,556,851.68x = 2,148,455.61 × 877,788.18 - Step 4: Simplify right side
1,556,851.68x = 1,885,888,939,712.69 - Step 5: Solve for x
x = 1,885,888,939,712.69/1,556,851.68 - Step 6: Final answer
x = 1,211,347.85
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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.