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Finding the Fourth Proportional to 381,842.28, 526,590.23 and 259,517.88

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Solution

The fourth proportional to 381,842.28, 526,590.23 and 259,517.88 is: 357,895.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,842.28 : 526,590.23 = 259,517.88 : x
  2. Step 2: Convert to fraction form
    381,842.28/526,590.23 = 259,517.88/x
  3. Step 3: Cross multiply
    381,842.28x = 526,590.23 × 259,517.88
  4. Step 4: Simplify right side
    381,842.28x = 136,659,578,820.72
  5. Step 5: Solve for x
    x = 136,659,578,820.72/381,842.28
  6. Step 6: Final answer
    x = 357,895.36

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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.