Home / 383,992.20-529,904.64-211,911.48

Finding the Fourth Proportional to 383,992.20, 529,904.64 and 211,911.48

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Solution

The fourth proportional to 383,992.20, 529,904.64 and 211,911.48 is: 292,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,992.20 : 529,904.64 = 211,911.48 : x
  2. Step 2: Convert to fraction form
    383,992.20/529,904.64 = 211,911.48/x
  3. Step 3: Cross multiply
    383,992.20x = 529,904.64 × 211,911.48
  4. Step 4: Simplify right side
    383,992.20x = 112,292,876,521.27
  5. Step 5: Solve for x
    x = 112,292,876,521.27/383,992.20
  6. Step 6: Final answer
    x = 292,435.31

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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.