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Finding the Fourth Proportional to 568,873.80, 785,048.49 and 310,754.27

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Solution

The fourth proportional to 568,873.80, 785,048.49 and 310,754.27 is: 428,842.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,873.80 : 785,048.49 = 310,754.27 : x
  2. Step 2: Convert to fraction form
    568,873.80/785,048.49 = 310,754.27/x
  3. Step 3: Cross multiply
    568,873.80x = 785,048.49 × 310,754.27
  4. Step 4: Simplify right side
    568,873.80x = 243,957,172,387.17
  5. Step 5: Solve for x
    x = 243,957,172,387.17/568,873.80
  6. Step 6: Final answer
    x = 428,842.34

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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.