Home / 957,781.48-1,321,747.78-528,078.60

Finding the Fourth Proportional to 957,781.48, 1,321,747.78 and 528,078.60

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Solution

The fourth proportional to 957,781.48, 1,321,747.78 and 528,078.60 is: 728,753.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,781.48 : 1,321,747.78 = 528,078.60 : x
  2. Step 2: Convert to fraction form
    957,781.48/1,321,747.78 = 528,078.60/x
  3. Step 3: Cross multiply
    957,781.48x = 1,321,747.78 × 528,078.60
  4. Step 4: Simplify right side
    957,781.48x = 697,986,717,215.51
  5. Step 5: Solve for x
    x = 697,986,717,215.51/957,781.48
  6. Step 6: Final answer
    x = 728,753.62

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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.