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Finding the Fourth Proportional to 256,031.40, 383,528.70 and 177,234.60

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Solution

The fourth proportional to 256,031.40, 383,528.70 and 177,234.60 is: 265,493.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,031.40 : 383,528.70 = 177,234.60 : x
  2. Step 2: Convert to fraction form
    256,031.40/383,528.70 = 177,234.60/x
  3. Step 3: Cross multiply
    256,031.40x = 383,528.70 × 177,234.60
  4. Step 4: Simplify right side
    256,031.40x = 67,974,555,733.02
  5. Step 5: Solve for x
    x = 67,974,555,733.02/256,031.40
  6. Step 6: Final answer
    x = 265,493.04

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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.