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Finding the Fourth Proportional to 483,145.20, 724,717.80 and 441,810.90

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Solution

The fourth proportional to 483,145.20, 724,717.80 and 441,810.90 is: 662,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,145.20 : 724,717.80 = 441,810.90 : x
  2. Step 2: Convert to fraction form
    483,145.20/724,717.80 = 441,810.90/x
  3. Step 3: Cross multiply
    483,145.20x = 724,717.80 × 441,810.90
  4. Step 4: Simplify right side
    483,145.20x = 320,188,223,464.02
  5. Step 5: Solve for x
    x = 320,188,223,464.02/483,145.20
  6. Step 6: Final answer
    x = 662,716.35

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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.