Home / 1,191,419.57-1,644,175.67-647,555.20

Finding the Fourth Proportional to 1,191,419.57, 1,644,175.67 and 647,555.20

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Solution

The fourth proportional to 1,191,419.57, 1,644,175.67 and 647,555.20 is: 893,635.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,419.57 : 1,644,175.67 = 647,555.20 : x
  2. Step 2: Convert to fraction form
    1,191,419.57/1,644,175.67 = 647,555.20/x
  3. Step 3: Cross multiply
    1,191,419.57x = 1,644,175.67 × 647,555.20
  4. Step 4: Simplify right side
    1,191,419.57x = 1,064,694,493,363.33
  5. Step 5: Solve for x
    x = 1,064,694,493,363.33/1,191,419.57
  6. Step 6: Final answer
    x = 893,635.22

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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.