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Finding the Fourth Proportional to 383,434.70, 529,140.92 and 230,560.43

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Solution

The fourth proportional to 383,434.70, 529,140.92 and 230,560.43 is: 318,174.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,434.70 : 529,140.92 = 230,560.43 : x
  2. Step 2: Convert to fraction form
    383,434.70/529,140.92 = 230,560.43/x
  3. Step 3: Cross multiply
    383,434.70x = 529,140.92 × 230,560.43
  4. Step 4: Simplify right side
    383,434.70x = 121,998,954,247.29
  5. Step 5: Solve for x
    x = 121,998,954,247.29/383,434.70
  6. Step 6: Final answer
    x = 318,174.01

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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.