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Finding the Fourth Proportional to 638,093.07, 957,158.17 and 238,657.64

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Solution

The fourth proportional to 638,093.07, 957,158.17 and 238,657.64 is: 357,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,093.07 : 957,158.17 = 238,657.64 : x
  2. Step 2: Convert to fraction form
    638,093.07/957,158.17 = 238,657.64/x
  3. Step 3: Cross multiply
    638,093.07x = 957,158.17 × 238,657.64
  4. Step 4: Simplify right side
    638,093.07x = 228,433,104,576.48
  5. Step 5: Solve for x
    x = 228,433,104,576.48/638,093.07
  6. Step 6: Final answer
    x = 357,993.40

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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.