Home / 957,864.31-1,321,785.21-528,135.21

Finding the Fourth Proportional to 957,864.31, 1,321,785.21 and 528,135.21

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Solution

The fourth proportional to 957,864.31, 1,321,785.21 and 528,135.21 is: 728,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,864.31 : 1,321,785.21 = 528,135.21 : x
  2. Step 2: Convert to fraction form
    957,864.31/1,321,785.21 = 528,135.21/x
  3. Step 3: Cross multiply
    957,864.31x = 1,321,785.21 × 528,135.21
  4. Step 4: Simplify right side
    957,864.31x = 698,081,313,670.89
  5. Step 5: Solve for x
    x = 698,081,313,670.89/957,864.31
  6. Step 6: Final answer
    x = 728,789.36

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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.