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Finding the Fourth Proportional to 568,236.30, 784,164.47 and 313,585.66

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Solution

The fourth proportional to 568,236.30, 784,164.47 and 313,585.66 is: 432,747.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,236.30 : 784,164.47 = 313,585.66 : x
  2. Step 2: Convert to fraction form
    568,236.30/784,164.47 = 313,585.66/x
  3. Step 3: Cross multiply
    568,236.30x = 784,164.47 × 313,585.66
  4. Step 4: Simplify right side
    568,236.30x = 245,902,732,873.50
  5. Step 5: Solve for x
    x = 245,902,732,873.50/568,236.30
  6. Step 6: Final answer
    x = 432,747.31

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1.5x scale

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.