Home / 982,796.63-1,356,390.56-643,461.71

Finding the Fourth Proportional to 982,796.63, 1,356,390.56 and 643,461.71

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Solution

The fourth proportional to 982,796.63, 1,356,390.56 and 643,461.71 is: 888,063.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,796.63 : 1,356,390.56 = 643,461.71 : x
  2. Step 2: Convert to fraction form
    982,796.63/1,356,390.56 = 643,461.71/x
  3. Step 3: Cross multiply
    982,796.63x = 1,356,390.56 × 643,461.71
  4. Step 4: Simplify right side
    982,796.63x = 872,785,383,992.16
  5. Step 5: Solve for x
    x = 872,785,383,992.16/982,796.63
  6. Step 6: Final answer
    x = 888,063.07

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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.