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Finding the Fourth Proportional to 603,766.80, 905,771.70 and 177,301.80

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Solution

The fourth proportional to 603,766.80, 905,771.70 and 177,301.80 is: 265,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,766.80 : 905,771.70 = 177,301.80 : x
  2. Step 2: Convert to fraction form
    603,766.80/905,771.70 = 177,301.80/x
  3. Step 3: Cross multiply
    603,766.80x = 905,771.70 × 177,301.80
  4. Step 4: Simplify right side
    603,766.80x = 160,594,952,799.06
  5. Step 5: Solve for x
    x = 160,594,952,799.06/603,766.80
  6. Step 6: Final answer
    x = 265,988.38

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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.