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Finding the Fourth Proportional to 400,577.28, 552,797.40 and 219,300.48

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Solution

The fourth proportional to 400,577.28, 552,797.40 and 219,300.48 is: 302,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,577.28 : 552,797.40 = 219,300.48 : x
  2. Step 2: Convert to fraction form
    400,577.28/552,797.40 = 219,300.48/x
  3. Step 3: Cross multiply
    400,577.28x = 552,797.40 × 219,300.48
  4. Step 4: Simplify right side
    400,577.28x = 121,228,735,162.75
  5. Step 5: Solve for x
    x = 121,228,735,162.75/400,577.28
  6. Step 6: Final answer
    x = 302,635.07

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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.