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Finding the Fourth Proportional to 483,760.20, 725,421.60 and 217,383.60

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Solution

The fourth proportional to 483,760.20, 725,421.60 and 217,383.60 is: 325,977.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,760.20 : 725,421.60 = 217,383.60 : x
  2. Step 2: Convert to fraction form
    483,760.20/725,421.60 = 217,383.60/x
  3. Step 3: Cross multiply
    483,760.20x = 725,421.60 × 217,383.60
  4. Step 4: Simplify right side
    483,760.20x = 157,694,758,925.76
  5. Step 5: Solve for x
    x = 157,694,758,925.76/483,760.20
  6. Step 6: Final answer
    x = 325,977.12

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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.