Home / 386,858.06-533,902.48-217,092.86

Finding the Fourth Proportional to 386,858.06, 533,902.48 and 217,092.86

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Solution

The fourth proportional to 386,858.06, 533,902.48 and 217,092.86 is: 299,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,858.06 : 533,902.48 = 217,092.86 : x
  2. Step 2: Convert to fraction form
    386,858.06/533,902.48 = 217,092.86/x
  3. Step 3: Cross multiply
    386,858.06x = 533,902.48 × 217,092.86
  4. Step 4: Simplify right side
    386,858.06x = 115,906,413,132.05
  5. Step 5: Solve for x
    x = 115,906,413,132.05/386,858.06
  6. Step 6: Final answer
    x = 299,609.67

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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.