Home / 386,786.18-533,774.13-217,032.86

Finding the Fourth Proportional to 386,786.18, 533,774.13 and 217,032.86

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Solution

The fourth proportional to 386,786.18, 533,774.13 and 217,032.86 is: 299,510.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,786.18 : 533,774.13 = 217,032.86 : x
  2. Step 2: Convert to fraction form
    386,786.18/533,774.13 = 217,032.86/x
  3. Step 3: Cross multiply
    386,786.18x = 533,774.13 × 217,032.86
  4. Step 4: Simplify right side
    386,786.18x = 115,846,526,027.91
  5. Step 5: Solve for x
    x = 115,846,526,027.91/386,786.18
  6. Step 6: Final answer
    x = 299,510.51

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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.