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Finding the Fourth Proportional to 382,814.71, 574,248.49 and 129,992.04

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Solution

The fourth proportional to 382,814.71, 574,248.49 and 129,992.04 is: 194,997.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,814.71 : 574,248.49 = 129,992.04 : x
  2. Step 2: Convert to fraction form
    382,814.71/574,248.49 = 129,992.04/x
  3. Step 3: Cross multiply
    382,814.71x = 574,248.49 × 129,992.04
  4. Step 4: Simplify right side
    382,814.71x = 74,647,732,357.04
  5. Step 5: Solve for x
    x = 74,647,732,357.04/382,814.71
  6. Step 6: Final answer
    x = 194,997.03

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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.