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Finding the Fourth Proportional to 400,439.40, 552,605.95 and 226,046.30

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Solution

The fourth proportional to 400,439.40, 552,605.95 and 226,046.30 is: 311,943.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,439.40 : 552,605.95 = 226,046.30 : x
  2. Step 2: Convert to fraction form
    400,439.40/552,605.95 = 226,046.30/x
  3. Step 3: Cross multiply
    400,439.40x = 552,605.95 × 226,046.30
  4. Step 4: Simplify right side
    400,439.40x = 124,914,530,355.49
  5. Step 5: Solve for x
    x = 124,914,530,355.49/400,439.40
  6. Step 6: Final answer
    x = 311,943.66

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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.