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Finding the Fourth Proportional to 404,659.59, 558,430.34 and 223,371.64

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Solution

The fourth proportional to 404,659.59, 558,430.34 and 223,371.64 is: 308,252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,659.59 : 558,430.34 = 223,371.64 : x
  2. Step 2: Convert to fraction form
    404,659.59/558,430.34 = 223,371.64/x
  3. Step 3: Cross multiply
    404,659.59x = 558,430.34 × 223,371.64
  4. Step 4: Simplify right side
    404,659.59x = 124,737,498,637.84
  5. Step 5: Solve for x
    x = 124,737,498,637.84/404,659.59
  6. Step 6: Final answer
    x = 308,252.92

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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.