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Finding the Fourth Proportional to 382,892.67, 574,339.14 and 172,284.57

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Solution

The fourth proportional to 382,892.67, 574,339.14 and 172,284.57 is: 258,426.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,892.67 : 574,339.14 = 172,284.57 : x
  2. Step 2: Convert to fraction form
    382,892.67/574,339.14 = 172,284.57/x
  3. Step 3: Cross multiply
    382,892.67x = 574,339.14 × 172,284.57
  4. Step 4: Simplify right side
    382,892.67x = 98,949,771,769.07
  5. Step 5: Solve for x
    x = 98,949,771,769.07/382,892.67
  6. Step 6: Final answer
    x = 258,426.92

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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.