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Finding the Fourth Proportional to 418,633.10, 587,136.10 and 418,633.10

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Solution

The fourth proportional to 418,633.10, 587,136.10 and 418,633.10 is: 587,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,633.10 : 587,136.10 = 418,633.10 : x
  2. Step 2: Convert to fraction form
    418,633.10/587,136.10 = 418,633.10/x
  3. Step 3: Cross multiply
    418,633.10x = 587,136.10 × 418,633.10
  4. Step 4: Simplify right side
    418,633.10x = 245,794,605,664.91
  5. Step 5: Solve for x
    x = 245,794,605,664.91/418,633.10
  6. Step 6: Final answer
    x = 587,136.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.