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Finding the Fourth Proportional to 413,573.60, 619,323.60 and 330,629.60

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Solution

The fourth proportional to 413,573.60, 619,323.60 and 330,629.60 is: 495,115.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,573.60 : 619,323.60 = 330,629.60 : x
  2. Step 2: Convert to fraction form
    413,573.60/619,323.60 = 330,629.60/x
  3. Step 3: Cross multiply
    413,573.60x = 619,323.60 × 330,629.60
  4. Step 4: Simplify right side
    413,573.60x = 204,766,714,138.56
  5. Step 5: Solve for x
    x = 204,766,714,138.56/413,573.60
  6. Step 6: Final answer
    x = 495,115.53

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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.