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Finding the Fourth Proportional to 403,609.40, 605,414.10 and 226,462.40

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Solution

The fourth proportional to 403,609.40, 605,414.10 and 226,462.40 is: 339,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,609.40 : 605,414.10 = 226,462.40 : x
  2. Step 2: Convert to fraction form
    403,609.40/605,414.10 = 226,462.40/x
  3. Step 3: Cross multiply
    403,609.40x = 605,414.10 × 226,462.40
  4. Step 4: Simplify right side
    403,609.40x = 137,103,530,079.84
  5. Step 5: Solve for x
    x = 137,103,530,079.84/403,609.40
  6. Step 6: Final answer
    x = 339,693.60

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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.