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Finding the Fourth Proportional to 411,859, 568,374.90 and 230,566.36

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Solution

The fourth proportional to 411,859, 568,374.90 and 230,566.36 is: 318,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,859 : 568,374.90 = 230,566.36 : x
  2. Step 2: Convert to fraction form
    411,859/568,374.90 = 230,566.36/x
  3. Step 3: Cross multiply
    411,859x = 568,374.90 × 230,566.36
  4. Step 4: Simplify right side
    411,859x = 131,048,131,808.36
  5. Step 5: Solve for x
    x = 131,048,131,808.36/411,859
  6. Step 6: Final answer
    x = 318,186.88

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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.