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Finding the Fourth Proportional to 421,570.20, 632,355.30 and 244,532.55

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Solution

The fourth proportional to 421,570.20, 632,355.30 and 244,532.55 is: 366,798.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,570.20 : 632,355.30 = 244,532.55 : x
  2. Step 2: Convert to fraction form
    421,570.20/632,355.30 = 244,532.55/x
  3. Step 3: Cross multiply
    421,570.20x = 632,355.30 × 244,532.55
  4. Step 4: Simplify right side
    421,570.20x = 154,631,454,015.02
  5. Step 5: Solve for x
    x = 154,631,454,015.02/421,570.20
  6. Step 6: Final answer
    x = 366,798.83

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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.