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Finding the Fourth Proportional to 383,915.14, 529,814.16 and 214,145.62

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Solution

The fourth proportional to 383,915.14, 529,814.16 and 214,145.62 is: 295,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,915.14 : 529,814.16 = 214,145.62 : x
  2. Step 2: Convert to fraction form
    383,915.14/529,814.16 = 214,145.62/x
  3. Step 3: Cross multiply
    383,915.14x = 529,814.16 × 214,145.62
  4. Step 4: Simplify right side
    383,915.14x = 113,457,381,777.98
  5. Step 5: Solve for x
    x = 113,457,381,777.98/383,915.14
  6. Step 6: Final answer
    x = 295,527.24

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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.