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Finding the Fourth Proportional to 381,569.70, 526,568.22 and 238,412.76

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Solution

The fourth proportional to 381,569.70, 526,568.22 and 238,412.76 is: 329,010.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,569.70 : 526,568.22 = 238,412.76 : x
  2. Step 2: Convert to fraction form
    381,569.70/526,568.22 = 238,412.76/x
  3. Step 3: Cross multiply
    381,569.70x = 526,568.22 × 238,412.76
  4. Step 4: Simplify right side
    381,569.70x = 125,540,582,658.49
  5. Step 5: Solve for x
    x = 125,540,582,658.49/381,569.70
  6. Step 6: Final answer
    x = 329,010.88

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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.