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Finding the Fourth Proportional to 412,818.60, 619,227.90 and 163,500.60

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Solution

The fourth proportional to 412,818.60, 619,227.90 and 163,500.60 is: 245,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,818.60 : 619,227.90 = 163,500.60 : x
  2. Step 2: Convert to fraction form
    412,818.60/619,227.90 = 163,500.60/x
  3. Step 3: Cross multiply
    412,818.60x = 619,227.90 × 163,500.60
  4. Step 4: Simplify right side
    412,818.60x = 101,244,133,186.74
  5. Step 5: Solve for x
    x = 101,244,133,186.74/412,818.60
  6. Step 6: Final answer
    x = 245,250.90

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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.