Home / 383,464.40-529,204-211,382.14

Finding the Fourth Proportional to 383,464.40, 529,204 and 211,382.14

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Solution

The fourth proportional to 383,464.40, 529,204 and 211,382.14 is: 291,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,464.40 : 529,204 = 211,382.14 : x
  2. Step 2: Convert to fraction form
    383,464.40/529,204 = 211,382.14/x
  3. Step 3: Cross multiply
    383,464.40x = 529,204 × 211,382.14
  4. Step 4: Simplify right side
    383,464.40x = 111,864,274,016.56
  5. Step 5: Solve for x
    x = 111,864,274,016.56/383,464.40
  6. Step 6: Final answer
    x = 291,720.10

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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.