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Finding the Fourth Proportional to 404,392.50, 558,061.65 and 225,544.50

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Solution

The fourth proportional to 404,392.50, 558,061.65 and 225,544.50 is: 311,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,392.50 : 558,061.65 = 225,544.50 : x
  2. Step 2: Convert to fraction form
    404,392.50/558,061.65 = 225,544.50/x
  3. Step 3: Cross multiply
    404,392.50x = 558,061.65 × 225,544.50
  4. Step 4: Simplify right side
    404,392.50x = 125,867,735,818.43
  5. Step 5: Solve for x
    x = 125,867,735,818.43/404,392.50
  6. Step 6: Final answer
    x = 311,251.41

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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.