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Finding the Fourth Proportional to 647,533.55, 970,911.52 and 332,605.55

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Solution

The fourth proportional to 647,533.55, 970,911.52 and 332,605.55 is: 498,708.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,533.55 : 970,911.52 = 332,605.55 : x
  2. Step 2: Convert to fraction form
    647,533.55/970,911.52 = 332,605.55/x
  3. Step 3: Cross multiply
    647,533.55x = 970,911.52 × 332,605.55
  4. Step 4: Simplify right side
    647,533.55x = 322,930,560,110.94
  5. Step 5: Solve for x
    x = 322,930,560,110.94/647,533.55
  6. Step 6: Final answer
    x = 498,708.62

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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.