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Finding the Fourth Proportional to 256,818.70, 385,228.05 and 182,023.30

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Solution

The fourth proportional to 256,818.70, 385,228.05 and 182,023.30 is: 273,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,818.70 : 385,228.05 = 182,023.30 : x
  2. Step 2: Convert to fraction form
    256,818.70/385,228.05 = 182,023.30/x
  3. Step 3: Cross multiply
    256,818.70x = 385,228.05 × 182,023.30
  4. Step 4: Simplify right side
    256,818.70x = 70,120,480,913.57
  5. Step 5: Solve for x
    x = 70,120,480,913.57/256,818.70
  6. Step 6: Final answer
    x = 273,034.95

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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.