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Finding the Fourth Proportional to 404,711.34, 558,503.76 and 223,419.96

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Solution

The fourth proportional to 404,711.34, 558,503.76 and 223,419.96 is: 308,320.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,711.34 : 558,503.76 = 223,419.96 : x
  2. Step 2: Convert to fraction form
    404,711.34/558,503.76 = 223,419.96/x
  3. Step 3: Cross multiply
    404,711.34x = 558,503.76 × 223,419.96
  4. Step 4: Simplify right side
    404,711.34x = 124,780,887,719.05
  5. Step 5: Solve for x
    x = 124,780,887,719.05/404,711.34
  6. Step 6: Final answer
    x = 308,320.71

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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.