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Finding the Fourth Proportional to 400,438.40, 552,604.57 and 226,045.30

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Solution

The fourth proportional to 400,438.40, 552,604.57 and 226,045.30 is: 311,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,438.40 : 552,604.57 = 226,045.30 : x
  2. Step 2: Convert to fraction form
    400,438.40/552,604.57 = 226,045.30/x
  3. Step 3: Cross multiply
    400,438.40x = 552,604.57 × 226,045.30
  4. Step 4: Simplify right side
    400,438.40x = 124,913,665,807.02
  5. Step 5: Solve for x
    x = 124,913,665,807.02/400,438.40
  6. Step 6: Final answer
    x = 311,942.28

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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.