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Finding the Fourth Proportional to 638,096.32, 957,163.04 and 238,660.89

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Solution

The fourth proportional to 638,096.32, 957,163.04 and 238,660.89 is: 357,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,096.32 : 957,163.04 = 238,660.89 : x
  2. Step 2: Convert to fraction form
    638,096.32/957,163.04 = 238,660.89/x
  3. Step 3: Cross multiply
    638,096.32x = 957,163.04 × 238,660.89
  4. Step 4: Simplify right side
    638,096.32x = 228,437,383,001.51
  5. Step 5: Solve for x
    x = 228,437,383,001.51/638,096.32
  6. Step 6: Final answer
    x = 357,998.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.