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Finding the Fourth Proportional to 474,517.67, 654,589.14 and 321,503.51

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Solution

The fourth proportional to 474,517.67, 654,589.14 and 321,503.51 is: 443,508.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,517.67 : 654,589.14 = 321,503.51 : x
  2. Step 2: Convert to fraction form
    474,517.67/654,589.14 = 321,503.51/x
  3. Step 3: Cross multiply
    474,517.67x = 654,589.14 × 321,503.51
  4. Step 4: Simplify right side
    474,517.67x = 210,452,702,844.94
  5. Step 5: Solve for x
    x = 210,452,702,844.94/474,517.67
  6. Step 6: Final answer
    x = 443,508.68

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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.