Home / 383,535.20-529,281.30-211,459.61

Finding the Fourth Proportional to 383,535.20, 529,281.30 and 211,459.61

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Solution

The fourth proportional to 383,535.20, 529,281.30 and 211,459.61 is: 291,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,535.20 : 529,281.30 = 211,459.61 : x
  2. Step 2: Convert to fraction form
    383,535.20/529,281.30 = 211,459.61/x
  3. Step 3: Cross multiply
    383,535.20x = 529,281.30 × 211,459.61
  4. Step 4: Simplify right side
    383,535.20x = 111,921,614,631.89
  5. Step 5: Solve for x
    x = 111,921,614,631.89/383,535.20
  6. Step 6: Final answer
    x = 291,815.76

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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.