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Finding the Fourth Proportional to 404,874.24, 607,679.90 and 215,493.60

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Solution

The fourth proportional to 404,874.24, 607,679.90 and 215,493.60 is: 323,436.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,874.24 : 607,679.90 = 215,493.60 : x
  2. Step 2: Convert to fraction form
    404,874.24/607,679.90 = 215,493.60/x
  3. Step 3: Cross multiply
    404,874.24x = 607,679.90 × 215,493.60
  4. Step 4: Simplify right side
    404,874.24x = 130,951,129,298.64
  5. Step 5: Solve for x
    x = 130,951,129,298.64/404,874.24
  6. Step 6: Final answer
    x = 323,436.55

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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.