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Finding the Fourth Proportional to 412,037.46, 618,152.58 and 127,713.12

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Solution

The fourth proportional to 412,037.46, 618,152.58 and 127,713.12 is: 191,599.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,037.46 : 618,152.58 = 127,713.12 : x
  2. Step 2: Convert to fraction form
    412,037.46/618,152.58 = 127,713.12/x
  3. Step 3: Cross multiply
    412,037.46x = 618,152.58 × 127,713.12
  4. Step 4: Simplify right side
    412,037.46x = 78,946,194,627.85
  5. Step 5: Solve for x
    x = 78,946,194,627.85/412,037.46
  6. Step 6: Final answer
    x = 191,599.56

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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.