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Finding the Fourth Proportional to 404,381.91, 558,043.45 and 223,095.41

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Solution

The fourth proportional to 404,381.91, 558,043.45 and 223,095.41 is: 307,869.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,381.91 : 558,043.45 = 223,095.41 : x
  2. Step 2: Convert to fraction form
    404,381.91/558,043.45 = 223,095.41/x
  3. Step 3: Cross multiply
    404,381.91x = 558,043.45 × 223,095.41
  4. Step 4: Simplify right side
    404,381.91x = 124,496,928,927.61
  5. Step 5: Solve for x
    x = 124,496,928,927.61/404,381.91
  6. Step 6: Final answer
    x = 307,869.68

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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.