Home / 383,485.12-529,185.62-211,394.14

Finding the Fourth Proportional to 383,485.12, 529,185.62 and 211,394.14

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Solution

The fourth proportional to 383,485.12, 529,185.62 and 211,394.14 is: 291,710.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,485.12 : 529,185.62 = 211,394.14 : x
  2. Step 2: Convert to fraction form
    383,485.12/529,185.62 = 211,394.14/x
  3. Step 3: Cross multiply
    383,485.12x = 529,185.62 × 211,394.14
  4. Step 4: Simplify right side
    383,485.12x = 111,866,738,245.79
  5. Step 5: Solve for x
    x = 111,866,738,245.79/383,485.12
  6. Step 6: Final answer
    x = 291,710.77

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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.