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Finding the Fourth Proportional to 467,555.20, 699,583.20 and 310,091.20

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Solution

The fourth proportional to 467,555.20, 699,583.20 and 310,091.20 is: 463,976.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,555.20 : 699,583.20 = 310,091.20 : x
  2. Step 2: Convert to fraction form
    467,555.20/699,583.20 = 310,091.20/x
  3. Step 3: Cross multiply
    467,555.20x = 699,583.20 × 310,091.20
  4. Step 4: Simplify right side
    467,555.20x = 216,934,593,987.84
  5. Step 5: Solve for x
    x = 216,934,593,987.84/467,555.20
  6. Step 6: Final answer
    x = 463,976.43

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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.