Home / 1,009,400.97-1,392,185.77-646,858.56

Finding the Fourth Proportional to 1,009,400.97, 1,392,185.77 and 646,858.56

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Solution

The fourth proportional to 1,009,400.97, 1,392,185.77 and 646,858.56 is: 892,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,400.97 : 1,392,185.77 = 646,858.56 : x
  2. Step 2: Convert to fraction form
    1,009,400.97/1,392,185.77 = 646,858.56/x
  3. Step 3: Cross multiply
    1,009,400.97x = 1,392,185.77 × 646,858.56
  4. Step 4: Simplify right side
    1,009,400.97x = 900,547,277,297.58
  5. Step 5: Solve for x
    x = 900,547,277,297.58/1,009,400.97
  6. Step 6: Final answer
    x = 892,160.11

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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.