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Finding the Fourth Proportional to 568,740.64, 851,966.43 and 269,509.78

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Solution

The fourth proportional to 568,740.64, 851,966.43 and 269,509.78 is: 403,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,740.64 : 851,966.43 = 269,509.78 : x
  2. Step 2: Convert to fraction form
    568,740.64/851,966.43 = 269,509.78/x
  3. Step 3: Cross multiply
    568,740.64x = 851,966.43 × 269,509.78
  4. Step 4: Simplify right side
    568,740.64x = 229,613,285,116.69
  5. Step 5: Solve for x
    x = 229,613,285,116.69/568,740.64
  6. Step 6: Final answer
    x = 403,722.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.