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Finding the Fourth Proportional to 448,466.40, 672,262.20 and 401,227.20

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Solution

The fourth proportional to 448,466.40, 672,262.20 and 401,227.20 is: 601,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,466.40 : 672,262.20 = 401,227.20 : x
  2. Step 2: Convert to fraction form
    448,466.40/672,262.20 = 401,227.20/x
  3. Step 3: Cross multiply
    448,466.40x = 672,262.20 × 401,227.20
  4. Step 4: Simplify right side
    448,466.40x = 269,729,880,171.84
  5. Step 5: Solve for x
    x = 269,729,880,171.84/448,466.40
  6. Step 6: Final answer
    x = 601,449.47

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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.