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Finding the Fourth Proportional to 404,377.92, 558,043.38 and 223,092

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Solution

The fourth proportional to 404,377.92, 558,043.38 and 223,092 is: 307,867.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,377.92 : 558,043.38 = 223,092 : x
  2. Step 2: Convert to fraction form
    404,377.92/558,043.38 = 223,092/x
  3. Step 3: Cross multiply
    404,377.92x = 558,043.38 × 223,092
  4. Step 4: Simplify right side
    404,377.92x = 124,495,013,730.96
  5. Step 5: Solve for x
    x = 124,495,013,730.96/404,377.92
  6. Step 6: Final answer
    x = 307,867.98

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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.