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Finding the Fourth Proportional to 411,808.40, 568,254.12 and 230,508.56

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Solution

The fourth proportional to 411,808.40, 568,254.12 and 230,508.56 is: 318,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,808.40 : 568,254.12 = 230,508.56 : x
  2. Step 2: Convert to fraction form
    411,808.40/568,254.12 = 230,508.56/x
  3. Step 3: Cross multiply
    411,808.40x = 568,254.12 × 230,508.56
  4. Step 4: Simplify right side
    411,808.40x = 130,987,438,915.27
  5. Step 5: Solve for x
    x = 130,987,438,915.27/411,808.40
  6. Step 6: Final answer
    x = 318,078.60

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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.