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Finding the Fourth Proportional to 383,883.46, 529,757.71 and 211,812.14

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Solution

The fourth proportional to 383,883.46, 529,757.71 and 211,812.14 is: 292,299.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,883.46 : 529,757.71 = 211,812.14 : x
  2. Step 2: Convert to fraction form
    383,883.46/529,757.71 = 211,812.14/x
  3. Step 3: Cross multiply
    383,883.46x = 529,757.71 × 211,812.14
  4. Step 4: Simplify right side
    383,883.46x = 112,209,115,031.46
  5. Step 5: Solve for x
    x = 112,209,115,031.46/383,883.46
  6. Step 6: Final answer
    x = 292,299.95

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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.