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Finding the Fourth Proportional to 576,140.54, 863,722.82 and 238,970.75

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Solution

The fourth proportional to 576,140.54, 863,722.82 and 238,970.75 is: 358,253.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,140.54 : 863,722.82 = 238,970.75 : x
  2. Step 2: Convert to fraction form
    576,140.54/863,722.82 = 238,970.75/x
  3. Step 3: Cross multiply
    576,140.54x = 863,722.82 × 238,970.75
  4. Step 4: Simplify right side
    576,140.54x = 206,404,486,366.33
  5. Step 5: Solve for x
    x = 206,404,486,366.33/576,140.54
  6. Step 6: Final answer
    x = 358,253.71

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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.