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Finding the Fourth Proportional to 397,260.40, 595,890.60 and 220,113.40

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Solution

The fourth proportional to 397,260.40, 595,890.60 and 220,113.40 is: 330,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,260.40 : 595,890.60 = 220,113.40 : x
  2. Step 2: Convert to fraction form
    397,260.40/595,890.60 = 220,113.40/x
  3. Step 3: Cross multiply
    397,260.40x = 595,890.60 × 220,113.40
  4. Step 4: Simplify right side
    397,260.40x = 131,163,505,994.04
  5. Step 5: Solve for x
    x = 131,163,505,994.04/397,260.40
  6. Step 6: Final answer
    x = 330,170.10

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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.