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Finding the Fourth Proportional to 382,666.78, 574,005.69 and 133,348.78

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Solution

The fourth proportional to 382,666.78, 574,005.69 and 133,348.78 is: 200,025.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,666.78 : 574,005.69 = 133,348.78 : x
  2. Step 2: Convert to fraction form
    382,666.78/574,005.69 = 133,348.78/x
  3. Step 3: Cross multiply
    382,666.78x = 574,005.69 × 133,348.78
  4. Step 4: Simplify right side
    382,666.78x = 76,542,959,192.07
  5. Step 5: Solve for x
    x = 76,542,959,192.07/382,666.78
  6. Step 6: Final answer
    x = 200,025.09

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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.