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Finding the Fourth Proportional to 404,600.40, 558,308.70 and 223,322.40

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Solution

The fourth proportional to 404,600.40, 558,308.70 and 223,322.40 is: 308,162.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,600.40 : 558,308.70 = 223,322.40 : x
  2. Step 2: Convert to fraction form
    404,600.40/558,308.70 = 223,322.40/x
  3. Step 3: Cross multiply
    404,600.40x = 558,308.70 × 223,322.40
  4. Step 4: Simplify right side
    404,600.40x = 124,682,838,824.88
  5. Step 5: Solve for x
    x = 124,682,838,824.88/404,600.40
  6. Step 6: Final answer
    x = 308,162.92

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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.