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Finding the Fourth Proportional to 647,557.30, 970,947.15 and 332,629.30

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Solution

The fourth proportional to 647,557.30, 970,947.15 and 332,629.30 is: 498,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,557.30 : 970,947.15 = 332,629.30 : x
  2. Step 2: Convert to fraction form
    647,557.30/970,947.15 = 332,629.30/x
  3. Step 3: Cross multiply
    647,557.30x = 970,947.15 × 332,629.30
  4. Step 4: Simplify right side
    647,557.30x = 322,965,470,841.50
  5. Step 5: Solve for x
    x = 322,965,470,841.50/647,557.30
  6. Step 6: Final answer
    x = 498,744.24

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Double scale
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Similar ratio
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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.