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Finding the Fourth Proportional to 647,556.30, 970,945.65 and 332,628.30

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Solution

The fourth proportional to 647,556.30, 970,945.65 and 332,628.30 is: 498,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,556.30 : 970,945.65 = 332,628.30 : x
  2. Step 2: Convert to fraction form
    647,556.30/970,945.65 = 332,628.30/x
  3. Step 3: Cross multiply
    647,556.30x = 970,945.65 × 332,628.30
  4. Step 4: Simplify right side
    647,556.30x = 322,964,000,951.90
  5. Step 5: Solve for x
    x = 322,964,000,951.90/647,556.30
  6. Step 6: Final answer
    x = 498,742.74

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Double scale
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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.