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Finding the Fourth Proportional to 479,555.11, 661,786.11 and 264,695.23

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Solution

The fourth proportional to 479,555.11, 661,786.11 and 264,695.23 is: 365,279.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,555.11 : 661,786.11 = 264,695.23 : x
  2. Step 2: Convert to fraction form
    479,555.11/661,786.11 = 264,695.23/x
  3. Step 3: Cross multiply
    479,555.11x = 661,786.11 × 264,695.23
  4. Step 4: Simplify right side
    479,555.11x = 175,171,621,964.85
  5. Step 5: Solve for x
    x = 175,171,621,964.85/479,555.11
  6. Step 6: Final answer
    x = 365,279.44

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1.5x scale

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.