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Finding the Fourth Proportional to 479,331.82, 661,477.80 and 264,472.30

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Solution

The fourth proportional to 479,331.82, 661,477.80 and 264,472.30 is: 364,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,331.82 : 661,477.80 = 264,472.30 : x
  2. Step 2: Convert to fraction form
    479,331.82/661,477.80 = 264,472.30/x
  3. Step 3: Cross multiply
    479,331.82x = 661,477.80 × 264,472.30
  4. Step 4: Simplify right side
    479,331.82x = 174,942,555,164.94
  5. Step 5: Solve for x
    x = 174,942,555,164.94/479,331.82
  6. Step 6: Final answer
    x = 364,971.71

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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.