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Finding the Fourth Proportional to 568,303.89, 784,257.76 and 313,653.25

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Solution

The fourth proportional to 568,303.89, 784,257.76 and 313,653.25 is: 432,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,303.89 : 784,257.76 = 313,653.25 : x
  2. Step 2: Convert to fraction form
    568,303.89/784,257.76 = 313,653.25/x
  3. Step 3: Cross multiply
    568,303.89x = 784,257.76 × 313,653.25
  4. Step 4: Simplify right side
    568,303.89x = 245,984,995,261.72
  5. Step 5: Solve for x
    x = 245,984,995,261.72/568,303.89
  6. Step 6: Final answer
    x = 432,840.60

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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.