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Finding the Fourth Proportional to 608,600.79, 912,999.60 and 187,778.25

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Solution

The fourth proportional to 608,600.79, 912,999.60 and 187,778.25 is: 281,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,600.79 : 912,999.60 = 187,778.25 : x
  2. Step 2: Convert to fraction form
    608,600.79/912,999.60 = 187,778.25/x
  3. Step 3: Cross multiply
    608,600.79x = 912,999.60 × 187,778.25
  4. Step 4: Simplify right side
    608,600.79x = 171,441,467,138.70
  5. Step 5: Solve for x
    x = 171,441,467,138.70/608,600.79
  6. Step 6: Final answer
    x = 281,697.74

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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.