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Finding the Fourth Proportional to 533,869.11, 800,778.69 and 154,778.58

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Solution

The fourth proportional to 533,869.11, 800,778.69 and 154,778.58 is: 232,160.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,869.11 : 800,778.69 = 154,778.58 : x
  2. Step 2: Convert to fraction form
    533,869.11/800,778.69 = 154,778.58/x
  3. Step 3: Cross multiply
    533,869.11x = 800,778.69 × 154,778.58
  4. Step 4: Simplify right side
    533,869.11x = 123,943,388,532.46
  5. Step 5: Solve for x
    x = 123,943,388,532.46/533,869.11
  6. Step 6: Final answer
    x = 232,160.63

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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.