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Finding the Fourth Proportional to 603,878.22, 905,821.19 and 177,412.30

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Solution

The fourth proportional to 603,878.22, 905,821.19 and 177,412.30 is: 266,119.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,878.22 : 905,821.19 = 177,412.30 : x
  2. Step 2: Convert to fraction form
    603,878.22/905,821.19 = 177,412.30/x
  3. Step 3: Cross multiply
    603,878.22x = 905,821.19 × 177,412.30
  4. Step 4: Simplify right side
    603,878.22x = 160,703,820,706.64
  5. Step 5: Solve for x
    x = 160,703,820,706.64/603,878.22
  6. Step 6: Final answer
    x = 266,119.58

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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.