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Finding the Fourth Proportional to 400,626.52, 552,863.58 and 239,473.72

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Solution

The fourth proportional to 400,626.52, 552,863.58 and 239,473.72 is: 330,473.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,626.52 : 552,863.58 = 239,473.72 : x
  2. Step 2: Convert to fraction form
    400,626.52/552,863.58 = 239,473.72/x
  3. Step 3: Cross multiply
    400,626.52x = 552,863.58 × 239,473.72
  4. Step 4: Simplify right side
    400,626.52x = 132,396,298,155.12
  5. Step 5: Solve for x
    x = 132,396,298,155.12/400,626.52
  6. Step 6: Final answer
    x = 330,473.13

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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.