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Finding the Fourth Proportional to 619,718.85, 929,523.60 and 170,399.70

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Solution

The fourth proportional to 619,718.85, 929,523.60 and 170,399.70 is: 255,584.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,718.85 : 929,523.60 = 170,399.70 : x
  2. Step 2: Convert to fraction form
    619,718.85/929,523.60 = 170,399.70/x
  3. Step 3: Cross multiply
    619,718.85x = 929,523.60 × 170,399.70
  4. Step 4: Simplify right side
    619,718.85x = 158,390,542,582.92
  5. Step 5: Solve for x
    x = 158,390,542,582.92/619,718.85
  6. Step 6: Final answer
    x = 255,584.52

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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.