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Finding the Fourth Proportional to 400,553.88, 552,765.04 and 219,265.92

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Solution

The fourth proportional to 400,553.88, 552,765.04 and 219,265.92 is: 302,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,553.88 : 552,765.04 = 219,265.92 : x
  2. Step 2: Convert to fraction form
    400,553.88/552,765.04 = 219,265.92/x
  3. Step 3: Cross multiply
    400,553.88x = 552,765.04 × 219,265.92
  4. Step 4: Simplify right side
    400,553.88x = 121,202,535,724.64
  5. Step 5: Solve for x
    x = 121,202,535,724.64/400,553.88
  6. Step 6: Final answer
    x = 302,587.35

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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.