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Finding the Fourth Proportional to 603,640.80, 905,582.70 and 177,175.80

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Solution

The fourth proportional to 603,640.80, 905,582.70 and 177,175.80 is: 265,799.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,640.80 : 905,582.70 = 177,175.80 : x
  2. Step 2: Convert to fraction form
    603,640.80/905,582.70 = 177,175.80/x
  3. Step 3: Cross multiply
    603,640.80x = 905,582.70 × 177,175.80
  4. Step 4: Simplify right side
    603,640.80x = 160,447,339,338.66
  5. Step 5: Solve for x
    x = 160,447,339,338.66/603,640.80
  6. Step 6: Final answer
    x = 265,799.36

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1.5x scale

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.