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Finding the Fourth Proportional to 384,796.60, 577,194.90 and 313,937.80

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Solution

The fourth proportional to 384,796.60, 577,194.90 and 313,937.80 is: 470,906.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,796.60 : 577,194.90 = 313,937.80 : x
  2. Step 2: Convert to fraction form
    384,796.60/577,194.90 = 313,937.80/x
  3. Step 3: Cross multiply
    384,796.60x = 577,194.90 × 313,937.80
  4. Step 4: Simplify right side
    384,796.60x = 181,203,297,077.22
  5. Step 5: Solve for x
    x = 181,203,297,077.22/384,796.60
  6. Step 6: Final answer
    x = 470,906.70

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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.