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Finding the Fourth Proportional to 619,325.60, 929,015.40 and 170,034.80

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Solution

The fourth proportional to 619,325.60, 929,015.40 and 170,034.80 is: 255,059.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,325.60 : 929,015.40 = 170,034.80 : x
  2. Step 2: Convert to fraction form
    619,325.60/929,015.40 = 170,034.80/x
  3. Step 3: Cross multiply
    619,325.60x = 929,015.40 × 170,034.80
  4. Step 4: Simplify right side
    619,325.60x = 157,964,947,735.92
  5. Step 5: Solve for x
    x = 157,964,947,735.92/619,325.60
  6. Step 6: Final answer
    x = 255,059.61

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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.