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Finding the Fourth Proportional to 360,439.91, 540,235.44 and 147,074.67

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Solution

The fourth proportional to 360,439.91, 540,235.44 and 147,074.67 is: 220,438.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,439.91 : 540,235.44 = 147,074.67 : x
  2. Step 2: Convert to fraction form
    360,439.91/540,235.44 = 147,074.67/x
  3. Step 3: Cross multiply
    360,439.91x = 540,235.44 × 147,074.67
  4. Step 4: Simplify right side
    360,439.91x = 79,454,949,060.30
  5. Step 5: Solve for x
    x = 79,454,949,060.30/360,439.91
  6. Step 6: Final answer
    x = 220,438.82

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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.