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Finding the Fourth Proportional to 400,884.32, 553,202.24 and 239,828.17

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Solution

The fourth proportional to 400,884.32, 553,202.24 and 239,828.17 is: 330,952.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,884.32 : 553,202.24 = 239,828.17 : x
  2. Step 2: Convert to fraction form
    400,884.32/553,202.24 = 239,828.17/x
  3. Step 3: Cross multiply
    400,884.32x = 553,202.24 × 239,828.17
  4. Step 4: Simplify right side
    400,884.32x = 132,673,480,859.10
  5. Step 5: Solve for x
    x = 132,673,480,859.10/400,884.32
  6. Step 6: Final answer
    x = 330,952.03

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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.