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Finding the Fourth Proportional to 404,269.80, 605,529.90 and 217,062.60

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Solution

The fourth proportional to 404,269.80, 605,529.90 and 217,062.60 is: 325,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,269.80 : 605,529.90 = 217,062.60 : x
  2. Step 2: Convert to fraction form
    404,269.80/605,529.90 = 217,062.60/x
  3. Step 3: Cross multiply
    404,269.80x = 605,529.90 × 217,062.60
  4. Step 4: Simplify right side
    404,269.80x = 131,437,894,471.74
  5. Step 5: Solve for x
    x = 131,437,894,471.74/404,269.80
  6. Step 6: Final answer
    x = 325,124.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.