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Finding the Fourth Proportional to 667,175.22, 920,700.44 and 361,251.51

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Solution

The fourth proportional to 667,175.22, 920,700.44 and 361,251.51 is: 498,526.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,175.22 : 920,700.44 = 361,251.51 : x
  2. Step 2: Convert to fraction form
    667,175.22/920,700.44 = 361,251.51/x
  3. Step 3: Cross multiply
    667,175.22x = 920,700.44 × 361,251.51
  4. Step 4: Simplify right side
    667,175.22x = 332,604,422,401.41
  5. Step 5: Solve for x
    x = 332,604,422,401.41/667,175.22
  6. Step 6: Final answer
    x = 498,526.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.