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Finding the Fourth Proportional to 404,378.92, 558,044.76 and 223,093

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Solution

The fourth proportional to 404,378.92, 558,044.76 and 223,093 is: 307,869.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,378.92 : 558,044.76 = 223,093 : x
  2. Step 2: Convert to fraction form
    404,378.92/558,044.76 = 223,093/x
  3. Step 3: Cross multiply
    404,378.92x = 558,044.76 × 223,093
  4. Step 4: Simplify right side
    404,378.92x = 124,495,879,642.68
  5. Step 5: Solve for x
    x = 124,495,879,642.68/404,378.92
  6. Step 6: Final answer
    x = 307,869.36

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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.