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Finding the Fourth Proportional to 279,695.91, 386,008.20 and 170,794.23

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Solution

The fourth proportional to 279,695.91, 386,008.20 and 170,794.23 is: 235,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,695.91 : 386,008.20 = 170,794.23 : x
  2. Step 2: Convert to fraction form
    279,695.91/386,008.20 = 170,794.23/x
  3. Step 3: Cross multiply
    279,695.91x = 386,008.20 × 170,794.23
  4. Step 4: Simplify right side
    279,695.91x = 65,927,973,292.69
  5. Step 5: Solve for x
    x = 65,927,973,292.69/279,695.91
  6. Step 6: Final answer
    x = 235,713.04

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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.