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Finding the Fourth Proportional to 647,533.80, 970,911.90 and 332,605.80

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Solution

The fourth proportional to 647,533.80, 970,911.90 and 332,605.80 is: 498,708.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,533.80 : 970,911.90 = 332,605.80 : x
  2. Step 2: Convert to fraction form
    647,533.80/970,911.90 = 332,605.80/x
  3. Step 3: Cross multiply
    647,533.80x = 970,911.90 × 332,605.80
  4. Step 4: Simplify right side
    647,533.80x = 322,930,929,229.02
  5. Step 5: Solve for x
    x = 322,930,929,229.02/647,533.80
  6. Step 6: Final answer
    x = 498,708.99

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1.5x scale

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.