Home / 1,191,422.77-1,644,180.09-647,558.39

Finding the Fourth Proportional to 1,191,422.77, 1,644,180.09 and 647,558.39

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Solution

The fourth proportional to 1,191,422.77, 1,644,180.09 and 647,558.39 is: 893,639.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,422.77 : 1,644,180.09 = 647,558.39 : x
  2. Step 2: Convert to fraction form
    1,191,422.77/1,644,180.09 = 647,558.39/x
  3. Step 3: Cross multiply
    1,191,422.77x = 1,644,180.09 × 647,558.39
  4. Step 4: Simplify right side
    1,191,422.77x = 1,064,702,608,712.66
  5. Step 5: Solve for x
    x = 1,064,702,608,712.66/1,191,422.77
  6. Step 6: Final answer
    x = 893,639.64

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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.