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Finding the Fourth Proportional to 383,434.43, 529,178.90 and 230,522.45

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Solution

The fourth proportional to 383,434.43, 529,178.90 and 230,522.45 is: 318,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,434.43 : 529,178.90 = 230,522.45 : x
  2. Step 2: Convert to fraction form
    383,434.43/529,178.90 = 230,522.45/x
  3. Step 3: Cross multiply
    383,434.43x = 529,178.90 × 230,522.45
  4. Step 4: Simplify right side
    383,434.43x = 121,987,612,717.80
  5. Step 5: Solve for x
    x = 121,987,612,717.80/383,434.43
  6. Step 6: Final answer
    x = 318,144.65

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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.