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Finding the Fourth Proportional to 417,452.20, 625,664.70 and 192,500.20

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Solution

The fourth proportional to 417,452.20, 625,664.70 and 192,500.20 is: 288,513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,452.20 : 625,664.70 = 192,500.20 : x
  2. Step 2: Convert to fraction form
    417,452.20/625,664.70 = 192,500.20/x
  3. Step 3: Cross multiply
    417,452.20x = 625,664.70 × 192,500.20
  4. Step 4: Simplify right side
    417,452.20x = 120,440,579,882.94
  5. Step 5: Solve for x
    x = 120,440,579,882.94/417,452.20
  6. Step 6: Final answer
    x = 288,513.46

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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.