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Finding the Fourth Proportional to 568,891.71, 785,062.41 and 310,765.59

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Solution

The fourth proportional to 568,891.71, 785,062.41 and 310,765.59 is: 428,852.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,891.71 : 785,062.41 = 310,765.59 : x
  2. Step 2: Convert to fraction form
    568,891.71/785,062.41 = 310,765.59/x
  3. Step 3: Cross multiply
    568,891.71x = 785,062.41 × 310,765.59
  4. Step 4: Simplify right side
    568,891.71x = 243,970,383,030.47
  5. Step 5: Solve for x
    x = 243,970,383,030.47/568,891.71
  6. Step 6: Final answer
    x = 428,852.06

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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.