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Finding the Fourth Proportional to 512,568.40, 768,852.60 and 483,043.90

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Solution

The fourth proportional to 512,568.40, 768,852.60 and 483,043.90 is: 724,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,568.40 : 768,852.60 = 483,043.90 : x
  2. Step 2: Convert to fraction form
    512,568.40/768,852.60 = 483,043.90/x
  3. Step 3: Cross multiply
    512,568.40x = 768,852.60 × 483,043.90
  4. Step 4: Simplify right side
    512,568.40x = 371,389,558,429.14
  5. Step 5: Solve for x
    x = 371,389,558,429.14/512,568.40
  6. Step 6: Final answer
    x = 724,565.85

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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.