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Finding the Fourth Proportional to 221,479,660.90, 332,219,491.35 and 221,479,660.90

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Solution

The fourth proportional to 221,479,660.90, 332,219,491.35 and 221,479,660.90 is: 332,219,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,479,660.90 : 332,219,491.35 = 221,479,660.90 : x
  2. Step 2: Convert to fraction form
    221,479,660.90/332,219,491.35 = 221,479,660.90/x
  3. Step 3: Cross multiply
    221,479,660.90x = 332,219,491.35 × 221,479,660.90
  4. Step 4: Simplify right side
    221,479,660.90x = 73,579,860,288,568,496
  5. Step 5: Solve for x
    x = 73,579,860,288,568,496/221,479,660.90
  6. Step 6: Final answer
    x = 332,219,491.35

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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.