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Finding the Fourth Proportional to 256,245, 383,886.36 and 236,911.92

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Solution

The fourth proportional to 256,245, 383,886.36 and 236,911.92 is: 354,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,245 : 383,886.36 = 236,911.92 : x
  2. Step 2: Convert to fraction form
    256,245/383,886.36 = 236,911.92/x
  3. Step 3: Cross multiply
    256,245x = 383,886.36 × 236,911.92
  4. Step 4: Simplify right side
    256,245x = 90,947,254,609.41
  5. Step 5: Solve for x
    x = 90,947,254,609.41/256,245
  6. Step 6: Final answer
    x = 354,923.04

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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.