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Finding the Fourth Proportional to 555,032.24, 765,944.44 and 300,383.48

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Solution

The fourth proportional to 555,032.24, 765,944.44 and 300,383.48 is: 414,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,032.24 : 765,944.44 = 300,383.48 : x
  2. Step 2: Convert to fraction form
    555,032.24/765,944.44 = 300,383.48/x
  3. Step 3: Cross multiply
    555,032.24x = 765,944.44 × 300,383.48
  4. Step 4: Simplify right side
    555,032.24x = 230,077,056,373.85
  5. Step 5: Solve for x
    x = 230,077,056,373.85/555,032.24
  6. Step 6: Final answer
    x = 414,529.17

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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.