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Finding the Fourth Proportional to 603,497.61, 905,415.89 and 177,043.50

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Solution

The fourth proportional to 603,497.61, 905,415.89 and 177,043.50 is: 265,614.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,497.61 : 905,415.89 = 177,043.50 : x
  2. Step 2: Convert to fraction form
    603,497.61/905,415.89 = 177,043.50/x
  3. Step 3: Cross multiply
    603,497.61x = 905,415.89 × 177,043.50
  4. Step 4: Simplify right side
    603,497.61x = 160,297,998,121.22
  5. Step 5: Solve for x
    x = 160,297,998,121.22/603,497.61
  6. Step 6: Final answer
    x = 265,614.97

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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.