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Finding the Fourth Proportional to 483,171.40, 724,509.18 and 255,589.85

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Solution

The fourth proportional to 483,171.40, 724,509.18 and 255,589.85 is: 383,253.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,171.40 : 724,509.18 = 255,589.85 : x
  2. Step 2: Convert to fraction form
    483,171.40/724,509.18 = 255,589.85/x
  3. Step 3: Cross multiply
    483,171.40x = 724,509.18 × 255,589.85
  4. Step 4: Simplify right side
    483,171.40x = 185,177,192,639.82
  5. Step 5: Solve for x
    x = 185,177,192,639.82/483,171.40
  6. Step 6: Final answer
    x = 383,253.63

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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.