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Finding the Fourth Proportional to 568,458.20, 784,468.50 and 313,809.32

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Solution

The fourth proportional to 568,458.20, 784,468.50 and 313,809.32 is: 433,054.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,458.20 : 784,468.50 = 313,809.32 : x
  2. Step 2: Convert to fraction form
    568,458.20/784,468.50 = 313,809.32/x
  3. Step 3: Cross multiply
    568,458.20x = 784,468.50 × 313,809.32
  4. Step 4: Simplify right side
    568,458.20x = 246,173,526,546.42
  5. Step 5: Solve for x
    x = 246,173,526,546.42/568,458.20
  6. Step 6: Final answer
    x = 433,054.76

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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.