Home / 1,191,771.09-1,644,676.56-647,943.48

Finding the Fourth Proportional to 1,191,771.09, 1,644,676.56 and 647,943.48

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Solution

The fourth proportional to 1,191,771.09, 1,644,676.56 and 647,943.48 is: 894,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,771.09 : 1,644,676.56 = 647,943.48 : x
  2. Step 2: Convert to fraction form
    1,191,771.09/1,644,676.56 = 647,943.48/x
  3. Step 3: Cross multiply
    1,191,771.09x = 1,644,676.56 × 647,943.48
  4. Step 4: Simplify right side
    1,191,771.09x = 1,065,657,453,760.83
  5. Step 5: Solve for x
    x = 1,065,657,453,760.83/1,191,771.09
  6. Step 6: Final answer
    x = 894,179.65

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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.