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Finding the Fourth Proportional to 603,896.60, 905,848.74 and 177,430.65

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Solution

The fourth proportional to 603,896.60, 905,848.74 and 177,430.65 is: 266,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,896.60 : 905,848.74 = 177,430.65 : x
  2. Step 2: Convert to fraction form
    603,896.60/905,848.74 = 177,430.65/x
  3. Step 3: Cross multiply
    603,896.60x = 905,848.74 × 177,430.65
  4. Step 4: Simplify right side
    603,896.60x = 160,725,330,739.88
  5. Step 5: Solve for x
    x = 160,725,330,739.88/603,896.60
  6. Step 6: Final answer
    x = 266,147.11

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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.