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Finding the Fourth Proportional to 568,622.60, 784,684.08 and 313,968.32

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Solution

The fourth proportional to 568,622.60, 784,684.08 and 313,968.32 is: 433,267.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,622.60 : 784,684.08 = 313,968.32 : x
  2. Step 2: Convert to fraction form
    568,622.60/784,684.08 = 313,968.32/x
  3. Step 3: Cross multiply
    568,622.60x = 784,684.08 × 313,968.32
  4. Step 4: Simplify right side
    568,622.60x = 246,365,942,328.35
  5. Step 5: Solve for x
    x = 246,365,942,328.35/568,622.60
  6. Step 6: Final answer
    x = 433,267.94

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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.