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Finding the Fourth Proportional to 400,436.40, 552,601.81 and 226,043.30

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Solution

The fourth proportional to 400,436.40, 552,601.81 and 226,043.30 is: 311,939.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,436.40 : 552,601.81 = 226,043.30 : x
  2. Step 2: Convert to fraction form
    400,436.40/552,601.81 = 226,043.30/x
  3. Step 3: Cross multiply
    400,436.40x = 552,601.81 × 226,043.30
  4. Step 4: Simplify right side
    400,436.40x = 124,911,938,382.43
  5. Step 5: Solve for x
    x = 124,911,938,382.43/400,436.40
  6. Step 6: Final answer
    x = 311,939.52

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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.