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Finding the Fourth Proportional to 383,176.62, 528,800.09 and 213,410.76

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Solution

The fourth proportional to 383,176.62, 528,800.09 and 213,410.76 is: 294,515.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,176.62 : 528,800.09 = 213,410.76 : x
  2. Step 2: Convert to fraction form
    383,176.62/528,800.09 = 213,410.76/x
  3. Step 3: Cross multiply
    383,176.62x = 528,800.09 × 213,410.76
  4. Step 4: Simplify right side
    383,176.62x = 112,851,628,027.92
  5. Step 5: Solve for x
    x = 112,851,628,027.92/383,176.62
  6. Step 6: Final answer
    x = 294,515.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.