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Finding the Fourth Proportional to 619,378.62, 929,065.95 and 170,099.94

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Solution

The fourth proportional to 619,378.62, 929,065.95 and 170,099.94 is: 255,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,378.62 : 929,065.95 = 170,099.94 : x
  2. Step 2: Convert to fraction form
    619,378.62/929,065.95 = 170,099.94/x
  3. Step 3: Cross multiply
    619,378.62x = 929,065.95 × 170,099.94
  4. Step 4: Simplify right side
    619,378.62x = 158,034,062,351.04
  5. Step 5: Solve for x
    x = 158,034,062,351.04/619,378.62
  6. Step 6: Final answer
    x = 255,149.37

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Similar ratio
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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.